var numberOfMainMenuCategories = 5;
var masterTimeout;

function launchSubmenu(submenuNumber)
{
    masterTimeout = setTimeout ( "nowLaunch(" + submenuNumber + ")", 250 );
}

function nowLaunch(submenuNumber)
{
    try
    {
    closeAllOtherSubmenus(submenuNumber);
    document.getElementById('submenu'+submenuNumber).style.display = "block";
    }
    catch(err)
    {
    
    }
}

function closeAllOtherSubmenus(submenuNumberToKeepOpen)
{
    for (var i=1; i < numberOfMainMenuCategories; i++)
    {
        if (i == submenuNumberToKeepOpen)
        {
            continue;
        }
        
        document.getElementById('submenu'+i).style.display = "none";
    }
}