function getClassName(classname, node)  {
		//var re = new RegExp('\b' + classname + '\b');
		var els = node;
		for(var i=0,j=els.length; i<j; i++) {
			//alert (node[i].className);
			if(node[i].className == "act") {
				return i;
			}
		}
	}
	function init_menu() {
		if (document.getElementById('menu')) {
			var contentDiv = document.getElementById("menu");
			var allContainedElements = contentDiv.getElementsByTagName("li");
			var act_item =  getClassName("act",contentDiv.getElementsByTagName("a"));
			for (var i = 0; i < allContainedElements.length; i++) {
				html = allContainedElements[i].innerHTML;
				html = html.replace(/^\s+|\s+$/g, '');
				allContainedElements[i].innerHTML = "<span>"+html+"</span>";
				if (i==act_item) {
					allContainedElements[i].className = "li_act";
					var bg = i+1;
					document.body.className = "bg"+bg;
					//alert ("/images/bg"+bg+".jpg");
				}
			}
			
			var DivHeight = document.getElementById('main').offsetHeight;
			if (DivHeight<450) {
				document.getElementById('main').style.height = 450+'px';
			}
			
			var top1 = 0;
			if (document.getElementById('level4')) {
				var level5_height = document.getElementById('level4').offsetHeight;
				var contentDiv = document.getElementById("level3");
				var allContainedElements = contentDiv.getElementsByTagName("li");
				var allContainedElements2 = contentDiv.getElementsByTagName("a");
				var li_h2 = 0;
				for (var i = 0; i < allContainedElements.length; i++) {
					var elem = allContainedElements[i].getElementsByTagName("ul");
					li_h2 = li_h2 + allContainedElements2[i].offsetHeight;
					if (elem.length>0) {
						lev_h = level5_height+10;
						allContainedElements2[i].style.padding = '0 0 '+lev_h+'px 0';
						top1 = li_h2;
					}
				}
				document.getElementById('level4').style.top = top1+'px';
			}
			if (document.getElementById('level3')) {
				var con = document.getElementById("level2");
				var conEls = con.getElementsByTagName("li");
				var conEls2 = con.getElementsByTagName("a");
				for (var i = 0; i < conEls.length; i++) {
					var elem = conEls[i].getElementsByTagName("ul");
					if (elem.length>0) {
						conEls2[i].className = "act";
					}
				}
			}
		}
	}