/*********************************************************************************/
//
// �ffnet ein Fenster
//
// @param string Url
//
// @param string Name des Fensters
//
// @param string Optionen
//
// @return window     
//
/*********************************************************************************/

function openWindow(url, name, options){

  var regWidth = /width=(\d+)/;
  regWidth.exec(options);
  width = RegExp.$1; 
  if(width == ''){   
    width = 640; 
  }

  var regHeight = /height=(\d+)/;
  regHeight.exec(options);
  height = RegExp.$1;       
  if(height == ''){   
    height = 480; 
  }    


  if(!name && !width && !height && !options){
    return window.open(url, name);
    return;
  }
  //Zusaetzliche Optionen angeben
  if(!options){
    options = ',resizable=no,scrollbars=no,status=no';
  }
  //Position zentriert festlegen
  
  var posLeft = (screen.width / 2)  - (width  / 2);
  var posTop  = (screen.height / 2) - (height / 2);
  //alert('top='+posTop+',left='+posLeft+',width='+width+',height='+height+',' + options);<<<
  return window.open(url, name, 'top='+posTop+',left='+posLeft+',width='+width+',height='+height+',' + options);
}