var qt_close = 0;

function closeMenus()
{
        document.getElementById('menu_portfolios').style.visibility='hidden';
        document.getElementById('menu_help').style.visibility='hidden';
        document.getElementById('menu_projects').style.visibility='hidden';
}

function onDocumentClick()
{
        if (document.getElementById('menu_projects').style.visibility != 'visible')
        {
                closeMenus();
        }
}

function exeClose()
{ if (qt_close) closeMenus(); qt_close = 0; }

function cancelCloseTimer()
{ qt_close = 0; }

function runCloseTimer()
{
  if (qt_close) return;
  qt_close = 1;
  window.setTimeout('exeClose();', 400);
}

function showMenu(menu, offset)
{
        closeMenus();
        var menuObj = document.getElementById('menu_'+menu);
        var itemsObj = document.getElementById('menuitems_'+menu);
        var linkObj = document.getElementById('l'+menu);
        if (menuObj)
        {
          menuObj.style.left = (document.body.scrollWidth/2+offset)+'px';
          menuObj.style.visibility='visible';
        }
        if (linkObj) linkObj.style.textDecoration = 'none';
        if (itemsObj)
        {
          itemsObj.style.left = menuObj.style.left+5+'px';
          itemsObj.style.visibility='visible';
        }
}