var hide;
function showMenu(name) {
	clearTimeout(hide);
	hideOthers(name);
	if(document.all) {
	  if(temp = document.getElementById("diam")) {
	    temp.style.visibility = 'hidden';
	  }
	}
	document.getElementById(name).style.visibility = 'visible';
}

function hideMenu(name) {
	hide = setTimeout("istantHide(\"" + name + "\")", 300);
}

function istantHide(name) {
	if(document.all) {
	  if(temp = document.getElementById("diam")) {
	    temp.style.visibility = 'visible';
	  }
	}
	document.getElementById(name).style.visibility = 'hidden';
}

function hideOthers(name) {
	for(i = 1; i<6; i++) {
		temp = "m" + i;
		if(temp != name) {
			istantHide(temp);
		}
	}
}