KlapMenu = function(e){
	if(e.tagName == "UL"){
		var liElements = e.getElementsByTagName("li");
		for(var i=0;i<liElements.length;i++){
			if(liElements[i].getElementsByTagName("ul")[0]){
				liElements[i].onmouseover = function(){
					ulElement = this.getElementsByTagName("ul")[0];
					ulElement.style.visibility = "visible";
				}
				liElements[i].onmouseout = function(){
					ulElement = this.getElementsByTagName("ul")[0];
					ulElement.style.visibility = "hidden";
				}
			}
			
		}
	}else{
		alert("Error: KlapMenu requires an <ul> element.");
	}
}