/**
 * Drop down menu © Dynamic Drive (www.dynamicdrive.com)
 * For full source code and 100's more DHTML scripts, visit http://www.dynamicdrive.com
 */
var zindex = 10;

function sinaliza(qual)
{
    qual.style.backgroundColor = '#c2c3e7';
}

function dessinaliza(qual)
{
    qual.style.backgroundColor = '#eeeeee';
}

function vazio(){}

function aciona(qual, desfoca)
{
    dropit(event, qual);
    event.cancelBubble = true;
    desfoca.blur();
    return false
}

function dropit(e, whichone)
{
    curmenuID = document.getElementById(whichone).id;

    if (window.themenu && themenu.id != curmenuID)
    {
        themenuStyle.visibility = 'hidden';
    }
    themenu = document.getElementById(whichone);
    themenuStyle = themenu.style;

    hiddenconst = 'hidden';

    if (themenuStyle.visibility == hiddenconst)
    {
        themenuStyle.visibility = 'visible';
        themenuStyle.zIndex = zindex++;
    }
    else
    {
        hidemenu();
    }
    return false;
}

function hidemenu()
{
    if (window.themenu)
    {
        themenuStyle.visibility = 'hidden';
    }
}

document.onclick = hidemenu;