function turnon(numinarray) 
{
  if(document.images) 
  {
  	goback[numinarray] = document.images[imagenames[numinarray]].src;
	document.images[imagenames[numinarray]].src = changed[numinarray].src;
  }
}
function turnoff(numinarray) 
{
  if(document.images) 
	document.images[imagenames[numinarray]].src = goback[numinarray];
}
function openMenu(type,object)
{
	if (document.getElementById)
	{
		if(type=='on')
		{
	    	document.getElementById(object).style.visibility="visible"; 
			document.getElementById(object).style.zIndex="100";
	  	}
	    else 
		{
		  document.getElementById(object).style.visibility="hidden";
	  	}
	}
	return false;
}