$(document).ready(function() {
	
	$(".portfolio-list ul>li:visible:even").css("background", "url(../pictures/separated.jpg) top right repeat-y");
	
	$('#cat').change(function () { 
		if ($('#cat').val()=='All')
		{
			$(".portfolio-list ul>li").css('display','block');
		}
		else
		{	
			$(".portfolio-list ul>li").css('display','none');  
			$(".portfolio-list ul>li[cat='"+$('#cat').val()+"']").css('display','block');  
		}
		$(".portfolio-list ul>li").css("background", "none");
		$(".portfolio-list ul>li:visible:even").css("background", "url(../pictures/separated.jpg) top right repeat-y");
	});
	
 });