var currentDrop = "none";

function showDrop(dropName)
{	
	if ( currentDrop != dropName )
	{
		if ( getDivReference(dropName) )
		{
			reference = getDivStyleReference(dropName);
			reference.zIndex = "201";
			reference.visibility = getVisibility('show');
			currentDrop = dropName;
			dropTimerRecycle();
		}
	}
}

function hideDrop()
{
	if ( currentDrop != "none" )
	{
		reference = getDivStyleReference(currentDrop);
		reference.zIndex = "1";
		reference.visibility = getVisibility('hide');
		currentDrop = "none";
		dropTimerRecycle();
	}
}

function dropTimerRecycle()
{
	dropTimerStop();
	dropTimerStart(2500);
}

function dropTimerStop()
{
	if ( window.dropTimer )
	{
		window.clearTimeout(dropTimer);
	}
}

function dropTimerStart(length)
{
	dropTimer = window.setTimeout("hideDrop();", length);
}