Tuesday, July 6, 2010
jQuery
Today, I am going to make a black and white image fade into a colour image or vice versa on mouseover with jQuery. So, follow the steps below to use the effect in your blog. In this tutorial, I'm going to use two images, a colour image and its greyscale mode image.
You can create greyscale mode image of the original image using any image editing softwares. Or you can use free online image editors such as Online-Image-Editor, Fotoflexer, Pixlr, Picnik and more.
1. Styling – CSS
First log into Blogger > Design > Edit HTML. Search for the code ]]></b:skin> . And replace it with the codes below.
span.fadehover {
position: relative;
}
img.a {
position: absolute;
left: 0;
top: 0;
z-index: 10;
}
img.b {
position: absolute;
left: 0;
top: 0;
}
]]></b:skin>
position: relative;
}
img.a {
position: absolute;
left: 0;
top: 0;
z-index: 10;
}
img.b {
position: absolute;
left: 0;
top: 0;
}
]]></b:skin>
2. jQuery & Function
Now add the following jQuery script and function immediately before the </head> tag.
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js' type='text/javascript'/>
<script type='text/javascript'>
//<![CDATA[
$(document).ready(function(){
$("img.a").hover(
function() {
$(this).stop().animate({"opacity": "0"}, "slow");
},
function() {
$(this).stop().animate({"opacity": "1"}, "slow");
});
});
//]]>
</script>
<script type='text/javascript'>
//<![CDATA[
$(document).ready(function(){
$("img.a").hover(
function() {
$(this).stop().animate({"opacity": "0"}, "slow");
},
function() {
$(this).stop().animate({"opacity": "1"}, "slow");
});
});
//]]>
</script>
3. Wireframe – HTML
And here is the HTML code that you should place in your Blog posts. But, remember to add it in EDIT HTML mode and not in Compose mode in text editor.
<span class="fadehover">
<img src="URL_of_normal_image" alt="" class="a" />
<img src="URL_of_greyscale_image" alt="" class="b" />
</span>
<img src="URL_of_normal_image" alt="" class="a" />
<img src="URL_of_greyscale_image" alt="" class="b" />
</span>
UPDATE : You can decide whether you want the effect is from GREYSCALE to COLOUR or COLOUR to GREYSCALE by changing the image source in the HTML code above. The image with class='a' appears first and changes to image with class='b' on hover.
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33 comments:
Thanks man! This is great!
@Earl, welcome friend..
Work with IE too??
Yep,it works fine in IE also.
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Hey, can you write a code to add a lightbox too? To this image. Is it possible?
Im tryin:)
Thanks in advance:]
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I will try this one. thankz
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Hi! Great effect, but I can't find where to put the last code.. please help!
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awesome man ive been lookin 4 this:]
I've been looking for this effect in html5 without using 2 images. Since all the html versions lack of browser-support (chrome) or any other compabilities, I'm going to use this oldschool method! Thank you, this script looks really smooth and impressive!
I am very lucky to get this tips from you.I really like your points and think you put a new spin on this for readers. I respect your writing style. You’re so perceptive.
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This code is great! But how do I make it work with multiple images. Let's say I have a 8 images and I would like the effect to work on each one. Now they get overlapped.
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