function expandera(val){
	if(document.getElementById){
		if(document.getElementById(val).style.display != "block"){
			for(var i = 0; i < document.getElementById("menu").getElementsByTagName("div").length; i++){
				if(document.getElementById("menu").getElementsByTagName("div")[i].className == "submenu"){
				document.getElementById("menu").getElementsByTagName("div")[i].style.display = "none";
				}
			}
			document.getElementById(val).style.display = "block";
		}else{
			document.getElementById(val).style.display = "none";
		}
	}
}