Change the image source on rollover using jQuery

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I have a few images and their rollover images. Using jQuery, I want to show/hide the rollover image when the onmousemove/onmouseout event happen. All my image names follow t

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暖寄归人

2020-11-22 10:50

I've made something like the following code :)

It works only, when you have a second file named with _hover, for example, facebook.png and facebook_hover.png

$('#social').find('a').hover(function() {
    var target = $(this).find('img').attr('src');
    //console.log(target);
    var newTarg = target.replace('.png', '_hover.png');
    $(this).find('img').attr("src", newTarg);
}, function() {
    var target = $(this).find('img').attr('src');
    var newTarg = target.replace('_hover.png', '.png');
    $(this).find('img').attr("src", newTarg);
});

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醉梦人生

2020-11-22 10:51

A generic solution that doesn't limit you to "this image" and "that image" only may be to add the 'onmouseover' and 'onmouseout' tags to the HTML code itself.

HTML

<img src="img1.jpg" onmouseover="swap('img2.jpg')" onmouseout="swap('img1.jpg')" />

JavaScript

function swap(newImg){
  this.src = newImg;
}

Depending on your setup, maybe something like this would work better (and requires less HTML modification).

HTML

<img src="img1.jpg" id="ref1" />
<img src="img3.jpg" id="ref2" />
<img src="img5.jpg" id="ref3" />

JavaScript / jQuery

// Declare Arrays
  imgList = new Array();
  imgList["ref1"] = new Array();
  imgList["ref2"] = new Array();
  imgList["ref3"] = new Array();

//Set values for each mouse state
  imgList["ref1"]["out"] = "img1.jpg";
  imgList["ref1"]["over"] = "img2.jpg";
  imgList["ref2"]["out"] = "img3.jpg";
  imgList["ref2"]["over"] = "img4.jpg";
  imgList["ref3"]["out"] = "img5.jpg";
  imgList["ref3"]["over"] = "img6.jpg";

//Add the swapping functions
  $("img").mouseover(function(){
    $(this).attr("src", imgList[ $(this).attr("id") ]["over"]);
  }

  $("img").mouseout(function(){
    $(this).attr("src", imgList[ $(this).attr("id") ]["out"]);
  }

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星月不相逢

2020-11-22 10:56

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>JQuery</title>
<script src="jquery.js" type="text/javascript"> </script>
<style type="text/css">
    #box{
        width: 68px;
        height: 27px;
        background: url(images/home1.gif);
        cursor: pointer;
    }
</style>

<script type="text/javascript">

$(function(){

    $('#box').hover( function(){
        $('#box').css('background', 'url(images/home2.gif)');

    });
    $('#box').mouseout( function(){
        $('#box').css('background', 'url(images/home1.gif)');

    });

});
</script>
</head>

<body>
<div id="box" onclick="location.href='index.php';"></div>
</body>
</html>

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-上瘾入骨i

2020-11-22 10:58
I know you're asking about using jQuery, but you can achieve the same effect in browsers that have JavaScript turned off using CSS:
```
#element {
    width: 100px; /* width of image */
    height: 200px; /* height of image */
    background-image: url(/path/to/image.jpg);
}

#element:hover {
    background-image: url(/path/to/other_image.jpg);
}
```
There's a longer description here

Even better, however, is to use sprites: simple-css-image-rollover
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长情又很酷

2020-11-22 11:02

To set up on ready:

$(function() {
    $("img")
        .mouseover(function() { 
            var src = $(this).attr("src").match(/[^\.]+/) + "over.gif";
            $(this).attr("src", src);
        })
        .mouseout(function() {
            var src = $(this).attr("src").replace("over.gif", ".gif");
            $(this).attr("src", src);
        });
});

For those that use url image sources:

$(function() {
        $("img")
            .mouseover(function() {
               var src = $(this).attr("src");
               var regex = /_normal.svg/gi;
               src = this.src.replace(regex,'_rollover.svg');
               $(this).attr("src", src);

            })
            .mouseout(function() {
               var src = $(this).attr("src");
               var regex = /_rollover.svg/gi;
               src = this.src.replace(regex,'_normal.svg');
               $(this).attr("src", src);

            });
    });

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鱼传尺愫

2020-11-22 11:02

Adapted from Richard Ayotte's code - To target an img in a ul/li list (found via wrapper div class here), something like this:

$('div.navlist li').bind('mouseenter mouseleave', function() {    
    $(this).find('img').attr({ src: $(this).find('img').attr('data-alt-src'), 
    'data-alt-src':$(this).find('img').attr('src') }
);

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