clickMenu = function(menu) {
    if (document.getElementById(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("unclick", "");
				    getAgn[x].className=getAgn[x].className.replace("click", "unclick");
				    }
			    if ((this.className.indexOf('unclick'))!=-1) {
				    this.className=this.className.replace("unclick", "");;
				    }
				    else {
				    this.className+=" click";
				    }
			    }
		    }
	    }
	}