function divhight(obj) {

if (window && window.innerWidth)  {
  //Netscape-----------------
    h=window.innerHeight;
   }
else if (document && document.body && document.body.offsetWidth){
   // IE----------------------
   h=document.body.offsetHeight;
  }
 
 var fix = 200;
 var winmin = 200;
 var bh = 25; 
 var lr = 28; //verringerung für content-links und content-rechts
 
 if (h < (fix + winmin))
 { neuehoehe = 200;

 } 
 
else if (h > fix){neuehoehe = h - fix;}

document.getElementById('content').style.height = (neuehoehe)+"px";

}