$(document).ready(function() {
		
	//split url into an array by '/'
	var path = location.pathname.split("/");
	
	//grab params from url 		
	var param = path['4']; 
	
	if(param == '') { 
		param = '0';
		}
	
	$("#test_tubes ul li a").each(function() {
		title = "education";
		var oneHref = $(this).attr("href");
		var hrefArray = oneHref.split("/");
		var dateId = hrefArray['4']; 
		if(param == dateId) {
			$(this).parent().addClass("on");
			}
		});
		
});