var ns4 = (document.layers)? true:false;
var ns6 = (document.getElementById)? true:false;
var ie  = (document.all)? true:false;

var CheckWin = null;

function openWin(url, winwidth, winheight, winName){
	if (!CheckWin || CheckWin.closed){
		if(winName == "")
			winName = 'CheckWin';
		usrwidth = screen.width;
		usrheight = screen.height;

		var X = (usrwidth - winwidth) / 2;
		var Y = (usrheight - winheight) / 2;

		properties = "toolbar=no,location=no,directories=no,status=no,scrollbars=no,resizable=no,copyhistory=no,width="+winwidth+",height="+winheight+",";

		checkie = navigator.appName.indexOf("icrosoft");
		if(checkie == -1)
			properties = properties+"screenX="+X+",screenY="+Y;
		else
			properties = properties+"left="+X+",top="+Y;
		
		CheckWin = window.open(url,winName,properties);
		CheckWin.focus();
	}else{
		CheckWin.close();
		openWin(url, winwidth, winheight, winName)
	}
}
function sms(sender, wmid){
	openWin('http://www.px24.com/sms.asp?pseudo=&sprache=&sess_id=&lang=de&pp=576000&wmid='+wmid+'&sender='+sender, 740, 370, 'psms')
}
function chat(sender, wmid){
	openWin('popup_chat.php?wmid='+wmid+'&sender='+sender, 642, 480, 'pchat')
}
function galerie(sender, wmid){
	openWin('popup_galerie.php?wmid='+wmid+'&sender='+sender, 642, 480, 'pgalerie')
}
function popw(id, wmid){
	popWin = window.open('http://www.px24.com/'+id+'.asp?pp=576000&wmid='+wmid, 'pw', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=650,height=550');
}