function dMenu(id) {
	for (i=1;i<=8;i++) {
		if(document.getElementById('dmenu'+i)){
			document.getElementById('menu'+i).style.background = "none";
			document.getElementById('dmenu'+i).style.visibility = "hidden";
		}
	}
	if(document.getElementById('dmenu'+id)){
		document.getElementById('menu'+id).style.backgroundColor = "#000";
		document.getElementById('dmenu'+id).style.visibility = "visible";
		document.getElementById('dmenu'+id).style.zIndex = "999";
	}
}