lastMenu = "";
theMenu = "";
prevMenu = "";
if (document.layers) {
   visible = 'show';
   hidden = 'hide';
} else if (document.all) {
   visible = 'visible';
   hidden = 'hidden';
} else if (document.getElementById) {
   visible = 'visible';
   hidden = 'hidden';
}

function reveal(menu) {
   if (document.layers) {
     prevMenu = document.layers[lastMenu];
	theMenu = document.layers[menu];
   } else if (document.all) {
     prevMenu = document.all(menu).style;
     theMenu = document.all(menu).style;
   } else if (document.getElementById) {
     prevMenu = document.getElementById(menu).style;
     theMenu = document.getElementById(menu).style;
   }
	if (lastMenu != theMenu ) {
     lastMenu.visibility = hidden;
}
   if (theMenu.visibility == visible) {
     theMenu.visibility = hidden;
   } else {
     theMenu.visibility = visible;
   }
   lastMenu = theMenu;
}

function dly(menu) {
	pause=setTimeout("hid('" + menu + "');", 7000);
}

function hid(menu) {
   if (document.layers) {
	theMenu = document.layers[menu];
   } else if (document.all) {
     theMenu = document.all(menu).style;
   } else if (document.getElementById) {
     theMenu = document.getElementById(menu).style;
   }
	theMenu.visibility = hidden;
}