MediaWiki:Common.js

var myli = "div.thumbs ul l";
if ($(myli).html()) {
alert("hi");

$(myli).hover(function() {
	$(this).css({'z-index' : '10'}); /*Add a higher z-index value so this image stays on top*/ 
	$(this).find('img').addClass("hover").stop() /* Add class of "hover", then stop animation queue buildup*/
		.animate({
			marginTop: '-110px', /* The next 4 lines will vertically align this image */ 
			marginLeft: '-110px',
			top: '50%',
			left: '50%',
			width: '174px', /* Set new width */
			height: '174px', /* Set new height */
			padding: '20px'
		}, 200); /* this value of "200" is the speed of how fast/slow this hover animates */

	} , function() {
	$(this).css({'z-index' : '0'}); /* Set z-index back to 0 */
	$(this).find('img').removeClass("hover").stop()  /* Remove the "hover" class , then stop animation queue buildup*/
		.animate({
			marginTop: '0', /* Set alignment back to default */
			marginLeft: '0',
			top: '0',
			left: '0',
			width: '100px', /* Set width back to default */
			height: '100px', /* Set height back to default */
			padding: '5px'
		}, 400);
});