function getSizes() {
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } 
  else if( document.documentElement && 
  	( document.documentElement.clientWidth ||
  	  document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } 
  else if( document.body && 
  	( document.body.clientWidth || 
  	  document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  return new Array(myWidth, myHeight);
}


function produktwechsel() {
    index=document.getElementById("produktliste").selectedIndex;
    url=document.getElementById("produktliste").options[index].value;
    
	if (url != "default") {
		//self.location.href = url;

		windowSize = getSizes();
		
		windowWidth = windowSize[0];
		windowHeight = windowSize[1];
		
		
		windowProperties = "width="+windowWidth+",height="+windowHeight+",favorites=yes,toolbar=yes,status=yes,scrollbars=yes,location=yes,menubar=yes";
		
		neu = open(url,"targetWindow",windowProperties);
	}
}