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jQuery Effect - fadeTo() Method
Description:
The fadeTo( ) method fades the opacity of all matched elements to a specified opacity and firing an optional callback after completion.
Syntax:
Here is the simple syntax to use this method:
selector.fadeTo(speed, opacity[, callback]);
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Parameters:
Here is the description of all the parameters used by this method:
speed: A string representing one of the three predefined speeds ("slow", "def", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
opacity: A number between 0 and 1 denoting the target opacity.
callback: This is optional parameter representing a function to call once the animation is complete.
Example:
Following is a simple example a simple showing the usage of this method:
<html>
<head>
<title>the title</title>
<script type="text/javascript"
src="/jquery/jquery-1.3.2.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$("#more").click(function(){
$(".target").fadeTo( 'slow', 0.7, function(){
$(".log").text('More Opacity Transition Complete');
});
});
$("#less").click(function(){
$(".target").fadeTo( 'slow', 0.2, function(){
$(".log").text('less Opacity Transition Complete');
});
});
});
</script>
<style>
p {
background-color:#bca;
width:200px;
border:1px solid green;
}
</style>
</head>
<body>
<p>Click on any of the buttons</p>
<button id="less"> Less Opacity </button>
<button id="more"> More Opacity</button>
<div class="target">
<img src="/images/jquery.jpg" alt="jQuery" />
</div>
<div class="log"></div>
</body>
</html>
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To understand it in better way you can Try it yourself.
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