clickMenu = function(menu) {
	var getEls = document.getElementById(menu).getElementsByTagName("LI");
	var getAgn = getEls;
	for (var i=0; i<getEls.length; i++) {
		getEls[i].onclick=function() {
			for (var x=0; x<getAgn.length; x++) {
		 	getAgn[x].className=getAgn[x].className.replace("click", "");
			}
			this.className+=" click";
		}
	}
}

menuRate = function() {
	 var e, i = 0;
	 while (e = document.getElementById('tabs').getElementsByTagName ('label') [i++]) {
	 	if (e.className == 'on' || e.className == 'off') {
	  	e.onclick = function () {
	  		var getEls = document.getElementsByTagName('label');
	 			for (var z=0; z<getEls.length; z++) {
	  			getEls[z].className=getEls[z].className.replace('on', 'off');
	 			}
	  		this.className = 'on';
	 		}
		 }
	 }
 }