$(function(){
	$('.roll').each(function(){
		this.OriginalSrc = $(this).css('background-image');
		this.mainOriginalSrc = $('#topimage01').css('background-image');
		//this.mainRolloverSrc = this.OriginalSrc.replace(/(\.gif|\.jpg|\.png)$/,'_top.gif');
		this.mainRolloverSrc = this.OriginalSrc.replace('.gif','_top.gif');
		//this.mainRolloverSrc = $(#topimage).css('background-image');
		//this.mainOriginalSrc = 'images/top.gif';
		//this.mainRolloverSrc = 'images/menu_2_w_top.gif';
		this.mainRolloverImg = new Image();
		this.mainRolloverImg.src = this.mainRolloverSrc;
	}).hover(function(){
		$('#topimage01').css('background-image',this.mainRolloverSrc);
	},function(){
		$('#topimage01').css('background-image',this.mainOriginalSrc);
	});
});