// Copyright 2006-2007 javascript-array.com

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(iDropDown, iLayer) {
    
    var leftOffset = 0;
    if (iDropDown == 'Audi ModelsDropDown')
        leftOffset = 12;
    else if (iDropDown == 'New VanDropDown')
	    leftOffset = 12;
	 else if (iDropDown == 'New TruckDropDown')
        leftOffset = 12;
	else if (iDropDown == 'Search DropDown')
        leftOffset = 12;
    else if (iDropDown == 'Aftersales DropDown')
        leftOffset = 12;
    else if (iDropDown == 'Audi CentresDropDown')
        leftOffset = 12;
	else if (iDropDown == 'Company InfoDropDown')
        leftOffset = 12;	
		
        
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(iDropDown);
	ddmenuitem.style.visibility = 'visible';

	//Set the position of the drop down
	xNewPosition = getAbsX(document.getElementById(iLayer)) - leftOffset;
    yNewPosition = getAbsY(document.getElementById(iLayer)) + 30;
    document.getElementById(iDropDown).style.left = xNewPosition + 'px';
    document.getElementById(iDropDown).style.top = yNewPosition + 'px';
}

// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose;