document.getElementById('tv').onclick = function() {
	popup('http://www.transhair.de/videos/flash.html',352,330,'tv');
	}

document.getElementById('haarrechner').onclick = function() {
	popup('http://www.transhair.de/haarrechner/',980,720,'haarrechner');
	}
	
function popup(url,width,height,fenster)
{
  if (fenster == "") {fenster = "Fenster";}
  neuesfenster = open("",fenster,"height="+height+",width="+width);
  neuesfenster.document.open();
  var xp = (screen.availWidth - width)/2;
  var yp = (screen.availHeight - height)/2;
  neuesfenster.moveTo(xp,yp);
  neuesfenster.location.href = url;
  neuesfenster.document.close();
}