$(document).ready(function() {
	$(".p_filter").click(function() {
		var filter = false;
		var secondclass;
		$(".p_filter").removeClass("active_selector");
		$(this).addClass("active_selector");
		var thisid = $(this).attr('id');
		if (($("#drop_industry").val()=="all") && ($("#drop_practice").val()=="all")) {
			secondclass="";
		}
		else
		{
			if ($("#drop_practice").val()=="all") {secondclass=$("#drop_industry").val()}
			if ($("#drop_industry").val()=="all") {secondclass=$("#drop_practice").val()}
		}
		
		filterList(".seminar_item",thisid, secondclass);
	});
	
	//run the filter for the first time
	filterList(".seminar_item","active", "");
});