function bsAufloesung(){
  var bsBreite = screen.width;
  if(bsBreite == 800) 
	 document.write("<LINK REL='STYLESHEET' HREF='font2.css' TYPE='text/css'>");
    else if(bsBreite == 1024) 
	    document.write("<LINK REL='STYLESHEET' HREF='font2.css' TYPE='text/css'>");
       else if(bsBreite == 1152) 
	       document.write("<LINK REL='STYLESHEET' HREF='font3.css' TYPE='text/css'>");
          else 
             document.write("<LINK REL='STYLESHEET' HREF='font2.css' TYPE='text/css'>");
}