function openPop(destination,winname,scroll,winwidth,winheight) {
  satellite =  window.open(destination,winname,"locationbar=no,directories=no,status=no,menubar=no,resizable=yes,scrollbars="+scroll+",copyhistory=no,width="+winwidth+",height="+winheight+"");
  satellite.moveTo(((screen.width/2)-(winwidth/2)),((screen.height/2)-(winheight/2))); 
}


function change(name,quelle){

  window.status = "";
  document.images[name].src = quelle.src;
}



// preload images
pic_b_wasistlos 		= new Image(74,17);
pic_b_wasistlos.src 		= "art/navigation/b_wasistlos.gif";
pic_b_wasistlos_hi 		= new Image(74,17);
pic_b_wasistlos_hi.src 		= "art/navigation/b_wasistlos_hi.gif";
	
pic_b_woistwas 			= new Image(76,17);
pic_b_woistwas.src 		= "art/navigation/b_woistwas.gif";
pic_b_woistwas_hi 		= new Image(76,17);
pic_b_woistwas_hi.src 		= "art/navigation/b_woistwas_hi.gif";

pic_b_portrait 			= new Image(47,17);
pic_b_portrait.src 		= "art/navigation/b_portrait.gif";
pic_b_portrait_hi 		= new Image(47,17);
pic_b_portrait_hi.src 		= "art/navigation/b_portrait_hi.gif";

pic_b_anfahrt 			= new Image(49,17);
pic_b_anfahrt.src 		= "art/navigation/b_anfahrt.gif";
pic_b_anfahrt_hi 		= new Image(49,17);
pic_b_anfahrt_hi.src 		= "art/navigation/b_anfahrt_hi.gif";

pic_b_kontakt 			= new Image(50,17);
pic_b_kontakt.src 		= "art/navigation/b_kontakt.gif";
pic_b_kontakt_hi 		= new Image(50,17);
pic_b_kontakt_hi.src 		= "art/navigation/b_kontakt_hi.gif";