var clt =0;

function show_menu(id)
{
	clear_timer();
	close_menu("tgsm");
	close_menu("msm");
	document.getElementById(id).style.display = "";
}

function close_menu(id)
{
	document.getElementById(id).style.display = "none";
}

function leave_menu(id)
{
	clt = window.setTimeout("close_menu(\'"+id+"\')", 200)
}

function clear_timer()
{
	if(clt)
	{
		window.clearTimeout(clt);
		clt = null;
	}
}

function winOpen (url, breite, hoehe)
{
	 links = (screen.width/2) - (breite/2);
	 oben = (screen.height/2) - (hoehe/2);
	 window.open (url,"_blank","height=" + hoehe + ",scrollbars=yes,width=" + breite + ", top=" + oben + ",left=" + links);
}   

function sw(id)
{
	img = document.getElementById(id).src;
	if(img == "images/btn_"+id+"_over.jpg")
	{
		document.getElementById(id).src = "images/btn_"+id+"_norm.jpg";
	}
	else
	{
		document.getElementById(id).src = "images/btn_"+id+"_over.jpg";
		
	}
	
}