function SubmenuInit() {
		for(i=1; i<=5; i++) {
			if(document.getElementById("submenu" + i)) document.getElementById("submenu" + i).style.display = "none";
		}
	}
	
	function MenuShow(menuid){
		for(i=1; i<=5; i++) {
			var submenu = document.getElementById("submenu" + i);
			if(i == menuid) submenu.style.display="block";
			else submenu.style.display="none";
		}
	}

	function MenuHide(){
		for(i=1; i<=5; i++) {
			var submenu = document.getElementById("submenu" + i);
			if(submenu.style.display != "none") submenu.style.display="none";
		}
	}


	function changeMenuToSub(menuid,kt) {
		var menu = document.getElementById(menuid);
		var menu_active  = "img/menu_"+kt+"_" + menuid + "_2.gif";
		menu.src = menu_active;
	}


	function changeMenuToDefault(menuid,kt) {
		var menu = document.getElementById(menuid);
		var menu_default = "img/menu_"+kt+"_" + menuid + ".gif";
		menu.src = menu_default;
	}