var IE = document.all?true:false;
  
function posanzeigen(id)
{ 
 if (IE) 
 {
  var oben = document.documentElement.scrollTop;
 } 
 else 
 {
  var oben = window.pageYOffset;
 }  
 
 this.location.href="/FanPageShow/&vereinID="+id+"&postop="+oben;
}