var thisSubMenu;

function menuOn(menuItem,subMenu) {
	lite(menuItem);
		
	//If an associated submenu then make sub menu visible
	if (subMenu) {
		thisSubMenu = subMenu;
		setTimeout("showMenu()",0);
	}
}

function menuOff(menuItem,subMenu) {
	lite(menuItem);

	//if an associated sub menu then hide it (after short timeout)
	if (subMenu) {
		thisSubMenu = subMenu;

		//this function does not seem to work as well as the hideAllMenus()
		//setTimeout("hideMenu();",10);
		setTimeout("hideAllMenus();",0);
	}
}

function showMenu() {
	document.getElementById(thisSubMenu).style.visibility="visible";
}
function hideMenu() {
	document.getElementById(thisSubMenu).style.visibility="hidden";
}

function hideAllMenus() {
	if (document.getElementById("org_menu")){ document.getElementById("org_menu").style.visibility="hidden";}
	if (document.getElementById("ind_menu")){ document.getElementById("ind_menu").style.visibility="hidden";}
	if (document.getElementById("prod_menu")){ document.getElementById("prod_menu").style.visibility="hidden";}
	if (document.getElementById("events_menu")){ document.getElementById("events_menu").style.visibility="hidden";}
	if (document.getElementById("launch_menu")){ document.getElementById("launch_menu").style.visibility="hidden";}
	if (document.getElementById("bs_dir_menu")){ document.getElementById("bs_dir_menu").style.visibility="hidden";}
	if (document.getElementById("pub_dir_menu")){ document.getElementById("pub_dir_menu").style.visibility="hidden";}
	if (document.getElementById("members_menu")){ document.getElementById("members_menu").style.visibility="hidden";}
	if (document.getElementById("conf_menu")){ document.getElementById("conf_menu").style.visibility="hidden";}
	if (document.getElementById("content_menu")){ document.getElementById("content_menu").style.visibility="hidden";}
	if (document.getElementById("special_menu")){ document.getElementById("special_menu").style.visibility="hidden";}
	if (document.getElementById("professional_menu")){ document.getElementById("professional_menu").style.visibility="hidden";}
	if (document.getElementById("ou_menu")){ document.getElementById("ou_menu").style.visibility="hidden";}
	if (document.getElementById("jobs_menu")){ document.getElementById("jobs_menu").style.visibility="hidden";}	
	if (document.getElementById("ibf_menu")){ document.getElementById("ibf_menu").style.visibility="hidden";}	
	
}

/*creates a transition effect on the rollovers*/
function lite(obj) {
	/*if(document.all&&!window.opera) {
		obj.filters.blendTrans.apply(); 
		obj.filters.blendTrans.play(); 
	}*/
}