<!--
function show_menu(menu_name,pos) {
var style=document.getElementById(menu_name).style;
visible=style.visibility;
display=style.display;
if (visible=="hidden") {
	document.getElementById(menu_name).style.visibility="visible";
	document.getElementById(menu_name).style.display="block";
	if (pos) {
		document.getElementById('menu_main').style.position="absolute";
		document.getElementById('menu_main').style.left="10%";
		document.getElementById('menu_main').style.top="10%";
	}
}else{
	document.getElementById(menu_name).style.visibility="hidden";
	document.getElementById(menu_name).style.display="none";
	if (pos) {
		document.getElementById('menu_main').style.left="10%";
		document.getElementById('menu_main').style.top="10%";
	}
}

}
//-->