/******************************************************************************
* modified for specific purposes: rob@cherny.com, summer 2000                 *
* original code:                                                              *
* dhtmllib.js                                                                 *
*                                                                             *
* Copyright 1999 by Mike Hall.                                                *
* Web address: http://www.brainjar.com                                        *
******************************************************************************/


var timerID;


function showMenu()
{

	showLayer(getLayer('printbar'));
	clearTimeout(timerID);
}

function hideMenu()
{

	hideLayer(getLayer('printbar'));
      Bildwechsel('print',printoff);
	clearTimeout(timerID);
}



//-----------------------------------------------------------------------------
// Layer utilities.
//-----------------------------------------------------------------------------


function getLayer(name)
{
	return document.getElementById(name);
}


//-----------------------------------------------------------------------------
// Layer visibility.
//-----------------------------------------------------------------------------






function hideLayer(layer)
{
	layer.style.visibility = "hidden";
}

function showLayer(layer)
{
	layer.style.visibility = "visible";
}

function reverseVisibility(layer)
{
    if (getVisibility(layer) == "visible")
        hideLayer(layer);
    else
        showLayer(layer);
}


function getVisibility(layer)
{
	return layer.style.visibility;
}