Changing images with mouseover in Javascript










0















Need help changing the images with mouseover and mouse out with preloaded images. I was able to figure out the preloading but I can't get the image to change. If anybody can help me out it would be greatly appreciated.



"use strict";
var $ = function(id) return document.getElementById(id); ;

window.onload = function preload()
var image1 = $("image1");
var image2 = $("image2");

// preload images
var links = $("image_list").getElementsByTagName("a");
var i, link, image;
for(i = 0; i < links.length;i++)
link = links[i];
image = new Image();
image.src = link.href;



// attach mouseover and mouseout events for each image

image1.mouseover=function()
image1=image.src="images/release.jpg";
;

image1.onmouseout = function()
image1=image.src="images/hero.jpg";

;


image2.onmouseover = function()
image.src="images/deer.jpg";
;
image2.onmouseout= function()
image.src="images/bison.jpg";
;


;









share|improve this question


























    0















    Need help changing the images with mouseover and mouse out with preloaded images. I was able to figure out the preloading but I can't get the image to change. If anybody can help me out it would be greatly appreciated.



    "use strict";
    var $ = function(id) return document.getElementById(id); ;

    window.onload = function preload()
    var image1 = $("image1");
    var image2 = $("image2");

    // preload images
    var links = $("image_list").getElementsByTagName("a");
    var i, link, image;
    for(i = 0; i < links.length;i++)
    link = links[i];
    image = new Image();
    image.src = link.href;



    // attach mouseover and mouseout events for each image

    image1.mouseover=function()
    image1=image.src="images/release.jpg";
    ;

    image1.onmouseout = function()
    image1=image.src="images/hero.jpg";

    ;


    image2.onmouseover = function()
    image.src="images/deer.jpg";
    ;
    image2.onmouseout= function()
    image.src="images/bison.jpg";
    ;


    ;









    share|improve this question
























      0












      0








      0








      Need help changing the images with mouseover and mouse out with preloaded images. I was able to figure out the preloading but I can't get the image to change. If anybody can help me out it would be greatly appreciated.



      "use strict";
      var $ = function(id) return document.getElementById(id); ;

      window.onload = function preload()
      var image1 = $("image1");
      var image2 = $("image2");

      // preload images
      var links = $("image_list").getElementsByTagName("a");
      var i, link, image;
      for(i = 0; i < links.length;i++)
      link = links[i];
      image = new Image();
      image.src = link.href;



      // attach mouseover and mouseout events for each image

      image1.mouseover=function()
      image1=image.src="images/release.jpg";
      ;

      image1.onmouseout = function()
      image1=image.src="images/hero.jpg";

      ;


      image2.onmouseover = function()
      image.src="images/deer.jpg";
      ;
      image2.onmouseout= function()
      image.src="images/bison.jpg";
      ;


      ;









      share|improve this question














      Need help changing the images with mouseover and mouse out with preloaded images. I was able to figure out the preloading but I can't get the image to change. If anybody can help me out it would be greatly appreciated.



      "use strict";
      var $ = function(id) return document.getElementById(id); ;

      window.onload = function preload()
      var image1 = $("image1");
      var image2 = $("image2");

      // preload images
      var links = $("image_list").getElementsByTagName("a");
      var i, link, image;
      for(i = 0; i < links.length;i++)
      link = links[i];
      image = new Image();
      image.src = link.href;



      // attach mouseover and mouseout events for each image

      image1.mouseover=function()
      image1=image.src="images/release.jpg";
      ;

      image1.onmouseout = function()
      image1=image.src="images/hero.jpg";

      ;


      image2.onmouseover = function()
      image.src="images/deer.jpg";
      ;
      image2.onmouseout= function()
      image.src="images/bison.jpg";
      ;


      ;






      javascript html






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 31 '18 at 0:06









      Chris BenzolaChris Benzola

      82




      82






















          4 Answers
          4






          active

          oldest

          votes


















          1














          The way is changing the .src attribute of an image object.



          image1.src="images/release.jpg";


          instead of



          image1=image.src="images/release.jpg";


          Althought we don't usually do it with javascript. The way is with CSS, displaying the image as background-image of a DOM element and setting an other background-image on the same element on :hover.






          share|improve this answer























          • Alright I got it to work, thank you. And yeah I know, I had to do it this way for my javascript class.

            – Chris Benzola
            Mar 31 '18 at 0:30


















          0














          From what I can see you create all the variables inside the function preload and then you try to access them from outside the function where you created them.






          share|improve this answer






























            0

















            "use strict";
            var $ = function(id) return document.getElementById(id); ;

            window.onload = function()
            var image1 = $("image1");
            var image2 = $("image2");

            // preload images
            var links = $("image_list").getElementsByTagName("a");
            var i, link, image;
            for(i = 0; i < links.length; i++)
            link = links[i];
            image = new Image();
            image.src = link.href;


            // attach mouseover and mouseout events for each image
            image1.onmouseover = function()
            image1.src = "images/release.jpg";
            ;
            image1.onmouseout = function()
            image1.src = "images/hero.jpg";
            ;

            image2.onmouseover = function()
            image2.src="images/deer.jpg";
            ;
            image2.onmouseout = function()
            image2.src="images/bison.jpg";
            ;
            ;








            share|improve this answer


















            • 1





              Welcome to SO, Xuan Weng! Code-only answers are discouraged here, as they provide no insight into how the problem was solved. Please update your solution with an explanation of how your code solves the OP's problem :)

              – Joel
              Nov 13 '18 at 1:32


















            0

















            "use strict";
            var $ = function(id) return document.getElementById(id); ;

            window.onload = function()
            var image1 = $("image1");
            var image2 = $("image2");

            // preload images
            var links = $("image_list").getElementsByTagName("a");
            var i, link, image;
            for(i = 0; i < links.length; i++)
            link = links[i];
            image = new Image();
            image.src = link.href;


            // attach mouseover and mouseout events for each image
            image1.onmouseover = function()
            image1.src = "images/release.jpg";
            ;
            image1.onmouseout = function()
            image1.src = "images/hero.jpg";
            ;

            image2.onmouseover = function()
            image2.src="images/deer.jpg";
            ;
            image2.onmouseout = function()
            image2.src="images/bison.jpg";
            ;
            ;

            body 
            font-family: Verdana, Arial, Helvetica, sans-serif;
            font-size: 90%;
            background-color: white;
            width: 790px;
            margin: 0 auto;
            border: 3px solid blue;
            padding: 1em;

            h1
            color: blue;
            margin: 0;
            padding: 0;
            text-align: center;

            p
            margin: 0;
            padding: .5em 0;
            text-align: center;

            ul
            display: none;

            <!DOCTYPE html>
            <html>
            <head>
            <title>Image Rollover</title>
            <link rel="stylesheet" type="text/css" href="rollover.css">
            <script type="text/javascript" src="rollover.js"></script>
            </head>

            <body>
            <main>
            <h1>Fishing Images</h1>
            <p>Move your mouse over an image to change it and back out of the
            image to restore the original image.</p>
            <ul id="image_list">
            <li><a href="images/release.jpg" title="Catch and Release"></a></li>
            <li><a href="images/deer.jpg" title="Deer at Play"></a></li>
            <li><a href="images/hero.jpg" title="The Big One!"></a></li>
            <li><a href="images/bison.jpg" title="Grazing Bison"></a></li>
            </ul>
            <p>
            <img id="image1" src="images/hero.jpg" alt="">
            <img id="image2" src="images/bison.jpg" alt="">
            </p>
            </main>
            </body>
            </html>








            share|improve this answer























            • Welcome to SO, Xuan Weng! You've already answered this question, so it would be helpful if you deleted one of your redundant answers (and added explanations to your code as well!)

              – Joel
              Nov 13 '18 at 1:56










            Your Answer






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            4 Answers
            4






            active

            oldest

            votes








            4 Answers
            4






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            1














            The way is changing the .src attribute of an image object.



            image1.src="images/release.jpg";


            instead of



            image1=image.src="images/release.jpg";


            Althought we don't usually do it with javascript. The way is with CSS, displaying the image as background-image of a DOM element and setting an other background-image on the same element on :hover.






            share|improve this answer























            • Alright I got it to work, thank you. And yeah I know, I had to do it this way for my javascript class.

              – Chris Benzola
              Mar 31 '18 at 0:30















            1














            The way is changing the .src attribute of an image object.



            image1.src="images/release.jpg";


            instead of



            image1=image.src="images/release.jpg";


            Althought we don't usually do it with javascript. The way is with CSS, displaying the image as background-image of a DOM element and setting an other background-image on the same element on :hover.






            share|improve this answer























            • Alright I got it to work, thank you. And yeah I know, I had to do it this way for my javascript class.

              – Chris Benzola
              Mar 31 '18 at 0:30













            1












            1








            1







            The way is changing the .src attribute of an image object.



            image1.src="images/release.jpg";


            instead of



            image1=image.src="images/release.jpg";


            Althought we don't usually do it with javascript. The way is with CSS, displaying the image as background-image of a DOM element and setting an other background-image on the same element on :hover.






            share|improve this answer













            The way is changing the .src attribute of an image object.



            image1.src="images/release.jpg";


            instead of



            image1=image.src="images/release.jpg";


            Althought we don't usually do it with javascript. The way is with CSS, displaying the image as background-image of a DOM element and setting an other background-image on the same element on :hover.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Mar 31 '18 at 0:12









            BanNsS1BanNsS1

            1448




            1448












            • Alright I got it to work, thank you. And yeah I know, I had to do it this way for my javascript class.

              – Chris Benzola
              Mar 31 '18 at 0:30

















            • Alright I got it to work, thank you. And yeah I know, I had to do it this way for my javascript class.

              – Chris Benzola
              Mar 31 '18 at 0:30
















            Alright I got it to work, thank you. And yeah I know, I had to do it this way for my javascript class.

            – Chris Benzola
            Mar 31 '18 at 0:30





            Alright I got it to work, thank you. And yeah I know, I had to do it this way for my javascript class.

            – Chris Benzola
            Mar 31 '18 at 0:30













            0














            From what I can see you create all the variables inside the function preload and then you try to access them from outside the function where you created them.






            share|improve this answer



























              0














              From what I can see you create all the variables inside the function preload and then you try to access them from outside the function where you created them.






              share|improve this answer

























                0












                0








                0







                From what I can see you create all the variables inside the function preload and then you try to access them from outside the function where you created them.






                share|improve this answer













                From what I can see you create all the variables inside the function preload and then you try to access them from outside the function where you created them.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Mar 31 '18 at 0:16









                Gabriel TufisGabriel Tufis

                786




                786





















                    0

















                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;








                    share|improve this answer


















                    • 1





                      Welcome to SO, Xuan Weng! Code-only answers are discouraged here, as they provide no insight into how the problem was solved. Please update your solution with an explanation of how your code solves the OP's problem :)

                      – Joel
                      Nov 13 '18 at 1:32















                    0

















                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;








                    share|improve this answer


















                    • 1





                      Welcome to SO, Xuan Weng! Code-only answers are discouraged here, as they provide no insight into how the problem was solved. Please update your solution with an explanation of how your code solves the OP's problem :)

                      – Joel
                      Nov 13 '18 at 1:32













                    0












                    0








                    0










                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;








                    share|improve this answer
















                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;








                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;





                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;






                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Nov 13 '18 at 1:27









                    Xuan WengXuan Weng

                    1




                    1







                    • 1





                      Welcome to SO, Xuan Weng! Code-only answers are discouraged here, as they provide no insight into how the problem was solved. Please update your solution with an explanation of how your code solves the OP's problem :)

                      – Joel
                      Nov 13 '18 at 1:32












                    • 1





                      Welcome to SO, Xuan Weng! Code-only answers are discouraged here, as they provide no insight into how the problem was solved. Please update your solution with an explanation of how your code solves the OP's problem :)

                      – Joel
                      Nov 13 '18 at 1:32







                    1




                    1





                    Welcome to SO, Xuan Weng! Code-only answers are discouraged here, as they provide no insight into how the problem was solved. Please update your solution with an explanation of how your code solves the OP's problem :)

                    – Joel
                    Nov 13 '18 at 1:32





                    Welcome to SO, Xuan Weng! Code-only answers are discouraged here, as they provide no insight into how the problem was solved. Please update your solution with an explanation of how your code solves the OP's problem :)

                    – Joel
                    Nov 13 '18 at 1:32











                    0

















                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;

                    body 
                    font-family: Verdana, Arial, Helvetica, sans-serif;
                    font-size: 90%;
                    background-color: white;
                    width: 790px;
                    margin: 0 auto;
                    border: 3px solid blue;
                    padding: 1em;

                    h1
                    color: blue;
                    margin: 0;
                    padding: 0;
                    text-align: center;

                    p
                    margin: 0;
                    padding: .5em 0;
                    text-align: center;

                    ul
                    display: none;

                    <!DOCTYPE html>
                    <html>
                    <head>
                    <title>Image Rollover</title>
                    <link rel="stylesheet" type="text/css" href="rollover.css">
                    <script type="text/javascript" src="rollover.js"></script>
                    </head>

                    <body>
                    <main>
                    <h1>Fishing Images</h1>
                    <p>Move your mouse over an image to change it and back out of the
                    image to restore the original image.</p>
                    <ul id="image_list">
                    <li><a href="images/release.jpg" title="Catch and Release"></a></li>
                    <li><a href="images/deer.jpg" title="Deer at Play"></a></li>
                    <li><a href="images/hero.jpg" title="The Big One!"></a></li>
                    <li><a href="images/bison.jpg" title="Grazing Bison"></a></li>
                    </ul>
                    <p>
                    <img id="image1" src="images/hero.jpg" alt="">
                    <img id="image2" src="images/bison.jpg" alt="">
                    </p>
                    </main>
                    </body>
                    </html>








                    share|improve this answer























                    • Welcome to SO, Xuan Weng! You've already answered this question, so it would be helpful if you deleted one of your redundant answers (and added explanations to your code as well!)

                      – Joel
                      Nov 13 '18 at 1:56















                    0

















                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;

                    body 
                    font-family: Verdana, Arial, Helvetica, sans-serif;
                    font-size: 90%;
                    background-color: white;
                    width: 790px;
                    margin: 0 auto;
                    border: 3px solid blue;
                    padding: 1em;

                    h1
                    color: blue;
                    margin: 0;
                    padding: 0;
                    text-align: center;

                    p
                    margin: 0;
                    padding: .5em 0;
                    text-align: center;

                    ul
                    display: none;

                    <!DOCTYPE html>
                    <html>
                    <head>
                    <title>Image Rollover</title>
                    <link rel="stylesheet" type="text/css" href="rollover.css">
                    <script type="text/javascript" src="rollover.js"></script>
                    </head>

                    <body>
                    <main>
                    <h1>Fishing Images</h1>
                    <p>Move your mouse over an image to change it and back out of the
                    image to restore the original image.</p>
                    <ul id="image_list">
                    <li><a href="images/release.jpg" title="Catch and Release"></a></li>
                    <li><a href="images/deer.jpg" title="Deer at Play"></a></li>
                    <li><a href="images/hero.jpg" title="The Big One!"></a></li>
                    <li><a href="images/bison.jpg" title="Grazing Bison"></a></li>
                    </ul>
                    <p>
                    <img id="image1" src="images/hero.jpg" alt="">
                    <img id="image2" src="images/bison.jpg" alt="">
                    </p>
                    </main>
                    </body>
                    </html>








                    share|improve this answer























                    • Welcome to SO, Xuan Weng! You've already answered this question, so it would be helpful if you deleted one of your redundant answers (and added explanations to your code as well!)

                      – Joel
                      Nov 13 '18 at 1:56













                    0












                    0








                    0










                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;

                    body 
                    font-family: Verdana, Arial, Helvetica, sans-serif;
                    font-size: 90%;
                    background-color: white;
                    width: 790px;
                    margin: 0 auto;
                    border: 3px solid blue;
                    padding: 1em;

                    h1
                    color: blue;
                    margin: 0;
                    padding: 0;
                    text-align: center;

                    p
                    margin: 0;
                    padding: .5em 0;
                    text-align: center;

                    ul
                    display: none;

                    <!DOCTYPE html>
                    <html>
                    <head>
                    <title>Image Rollover</title>
                    <link rel="stylesheet" type="text/css" href="rollover.css">
                    <script type="text/javascript" src="rollover.js"></script>
                    </head>

                    <body>
                    <main>
                    <h1>Fishing Images</h1>
                    <p>Move your mouse over an image to change it and back out of the
                    image to restore the original image.</p>
                    <ul id="image_list">
                    <li><a href="images/release.jpg" title="Catch and Release"></a></li>
                    <li><a href="images/deer.jpg" title="Deer at Play"></a></li>
                    <li><a href="images/hero.jpg" title="The Big One!"></a></li>
                    <li><a href="images/bison.jpg" title="Grazing Bison"></a></li>
                    </ul>
                    <p>
                    <img id="image1" src="images/hero.jpg" alt="">
                    <img id="image2" src="images/bison.jpg" alt="">
                    </p>
                    </main>
                    </body>
                    </html>








                    share|improve this answer
















                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;

                    body 
                    font-family: Verdana, Arial, Helvetica, sans-serif;
                    font-size: 90%;
                    background-color: white;
                    width: 790px;
                    margin: 0 auto;
                    border: 3px solid blue;
                    padding: 1em;

                    h1
                    color: blue;
                    margin: 0;
                    padding: 0;
                    text-align: center;

                    p
                    margin: 0;
                    padding: .5em 0;
                    text-align: center;

                    ul
                    display: none;

                    <!DOCTYPE html>
                    <html>
                    <head>
                    <title>Image Rollover</title>
                    <link rel="stylesheet" type="text/css" href="rollover.css">
                    <script type="text/javascript" src="rollover.js"></script>
                    </head>

                    <body>
                    <main>
                    <h1>Fishing Images</h1>
                    <p>Move your mouse over an image to change it and back out of the
                    image to restore the original image.</p>
                    <ul id="image_list">
                    <li><a href="images/release.jpg" title="Catch and Release"></a></li>
                    <li><a href="images/deer.jpg" title="Deer at Play"></a></li>
                    <li><a href="images/hero.jpg" title="The Big One!"></a></li>
                    <li><a href="images/bison.jpg" title="Grazing Bison"></a></li>
                    </ul>
                    <p>
                    <img id="image1" src="images/hero.jpg" alt="">
                    <img id="image2" src="images/bison.jpg" alt="">
                    </p>
                    </main>
                    </body>
                    </html>








                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;

                    body 
                    font-family: Verdana, Arial, Helvetica, sans-serif;
                    font-size: 90%;
                    background-color: white;
                    width: 790px;
                    margin: 0 auto;
                    border: 3px solid blue;
                    padding: 1em;

                    h1
                    color: blue;
                    margin: 0;
                    padding: 0;
                    text-align: center;

                    p
                    margin: 0;
                    padding: .5em 0;
                    text-align: center;

                    ul
                    display: none;

                    <!DOCTYPE html>
                    <html>
                    <head>
                    <title>Image Rollover</title>
                    <link rel="stylesheet" type="text/css" href="rollover.css">
                    <script type="text/javascript" src="rollover.js"></script>
                    </head>

                    <body>
                    <main>
                    <h1>Fishing Images</h1>
                    <p>Move your mouse over an image to change it and back out of the
                    image to restore the original image.</p>
                    <ul id="image_list">
                    <li><a href="images/release.jpg" title="Catch and Release"></a></li>
                    <li><a href="images/deer.jpg" title="Deer at Play"></a></li>
                    <li><a href="images/hero.jpg" title="The Big One!"></a></li>
                    <li><a href="images/bison.jpg" title="Grazing Bison"></a></li>
                    </ul>
                    <p>
                    <img id="image1" src="images/hero.jpg" alt="">
                    <img id="image2" src="images/bison.jpg" alt="">
                    </p>
                    </main>
                    </body>
                    </html>





                    "use strict";
                    var $ = function(id) return document.getElementById(id); ;

                    window.onload = function()
                    var image1 = $("image1");
                    var image2 = $("image2");

                    // preload images
                    var links = $("image_list").getElementsByTagName("a");
                    var i, link, image;
                    for(i = 0; i < links.length; i++)
                    link = links[i];
                    image = new Image();
                    image.src = link.href;


                    // attach mouseover and mouseout events for each image
                    image1.onmouseover = function()
                    image1.src = "images/release.jpg";
                    ;
                    image1.onmouseout = function()
                    image1.src = "images/hero.jpg";
                    ;

                    image2.onmouseover = function()
                    image2.src="images/deer.jpg";
                    ;
                    image2.onmouseout = function()
                    image2.src="images/bison.jpg";
                    ;
                    ;

                    body 
                    font-family: Verdana, Arial, Helvetica, sans-serif;
                    font-size: 90%;
                    background-color: white;
                    width: 790px;
                    margin: 0 auto;
                    border: 3px solid blue;
                    padding: 1em;

                    h1
                    color: blue;
                    margin: 0;
                    padding: 0;
                    text-align: center;

                    p
                    margin: 0;
                    padding: .5em 0;
                    text-align: center;

                    ul
                    display: none;

                    <!DOCTYPE html>
                    <html>
                    <head>
                    <title>Image Rollover</title>
                    <link rel="stylesheet" type="text/css" href="rollover.css">
                    <script type="text/javascript" src="rollover.js"></script>
                    </head>

                    <body>
                    <main>
                    <h1>Fishing Images</h1>
                    <p>Move your mouse over an image to change it and back out of the
                    image to restore the original image.</p>
                    <ul id="image_list">
                    <li><a href="images/release.jpg" title="Catch and Release"></a></li>
                    <li><a href="images/deer.jpg" title="Deer at Play"></a></li>
                    <li><a href="images/hero.jpg" title="The Big One!"></a></li>
                    <li><a href="images/bison.jpg" title="Grazing Bison"></a></li>
                    </ul>
                    <p>
                    <img id="image1" src="images/hero.jpg" alt="">
                    <img id="image2" src="images/bison.jpg" alt="">
                    </p>
                    </main>
                    </body>
                    </html>






                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Nov 13 '18 at 1:35









                    Xuan WengXuan Weng

                    1




                    1












                    • Welcome to SO, Xuan Weng! You've already answered this question, so it would be helpful if you deleted one of your redundant answers (and added explanations to your code as well!)

                      – Joel
                      Nov 13 '18 at 1:56

















                    • Welcome to SO, Xuan Weng! You've already answered this question, so it would be helpful if you deleted one of your redundant answers (and added explanations to your code as well!)

                      – Joel
                      Nov 13 '18 at 1:56
















                    Welcome to SO, Xuan Weng! You've already answered this question, so it would be helpful if you deleted one of your redundant answers (and added explanations to your code as well!)

                    – Joel
                    Nov 13 '18 at 1:56





                    Welcome to SO, Xuan Weng! You've already answered this question, so it would be helpful if you deleted one of your redundant answers (and added explanations to your code as well!)

                    – Joel
                    Nov 13 '18 at 1:56

















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