adding ease-out to javascript

I know nothing about javascript. I want to add [B]easeOutSine[/B] to the following script. Can someone show me how/where to add it?

[CODE]<script src=”http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js”></script>
<script>$(document).ready(function() {
function filterPath(string) {
return string
.replace(/^//,”)
.replace(/(index|default).[a-zA-Z]{3,4}$/,”)
.replace(//$/,”);
}
$(‘a[href*=#]’).each(function() {
if ( filterPath(location.pathname) == filterPath(this.pathname)
&& location.hostname == this.hostname
&& this.hash.replace(/#/,”) ) {
var $targetId = $(this.hash), $targetAnchor = $(‘[name=’ + this.hash.slice(1) +’]’);
var $target = $targetId.length ? $targetId : $targetAnchor.length ? $targetAnchor : false;
if ($target) {
var targetOffset = $target.offset().top;
$(this).click(function() {
$(‘html, body’).animate({scrollTop: targetOffset}, 500);
return false;
});
}
}
});
});</script>[/CODE]

Thank you!

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