function getElementsByClass(searchClass) {
				var classElements = new Array();
				var els = document.getElementsByTagName('div');
				var elsLen = els.length;
				var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
				for (i = 0, j = 0; i < elsLen; i++) {
					if (pattern.test(els[i].className) ) {
						classElements[j] = els[i];
						j++;
					}
				}
				return classElements;
			}

			function toggle(type){
				if(type == 'event'){
					if(document.forms[0].events_chk.checked == 1){
						show(type);
					}else{
						hide(type);
					}
				}else if(type == 'concert'){
					if(document.forms[0].concerts_chk.checked == 1){
						show(type);
					}else{
						hide(type);
					}
				}else if(type == 'live_show'){
					if(document.forms[0].live_shows_chk.checked == 1){
						show(type);
					}else{
						hide(type);
					}
				}
			}

			function hide(info){
				var temp = getElementsByClass(info);
				for (var i=0;i<temp.length;i++){
					temp[i].style.display = 'none';
				}		  
			}

			function show(info){
				var temp = getElementsByClass(info);
				for (var i=0;i<temp.length;i++){
					temp[i].style.display = 'block';
				}
			}