var oTimer;

function f_TabMenuClear() {
	document.getElementById("current").className = "";
	var navRoot = document.getElementById("tab_menu");
		for (var i=0; i<navRoot.childNodes.length; i++) {
			var node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.className=node.className.replace("over", "");
				node.childNodes[0].className="";
			}
		}
}

function f_TabMenuHover() {
	if(document.getElementById("tab_menu")) {
		var navRoot = document.getElementById("tab_menu");
		for (var i=0; i<navRoot.childNodes.length; i++) {
			var node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					clearTimeout(oTimer); 
					f_TabMenuClear();
					this.className = this.className.replace("current", "");	
					this.className+=" over";					
					this.childNodes[0].className="over"; 
				};
				node.onmouseout=function() {
					oTimer = setTimeout(f_TabMenuSetCurrentTimer,2000);
				};
			}
		}
	}
}

function f_TabMenuSetCurrentTimer() {
    f_TabMenuClear();
    document.getElementById("current").className = "current";
}

function init() {
	f_TabMenuHover(); 
}