function getInsideWindowHeight()
{
  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  myHeight;		
}

function setHintergrundH()
{	
	h=getInsideWindowHeight()
	
	var ns4 = (document.layers)? true:false
	var ie4 = (document.all)? true:false                            
	ns6=(document.getElementById) ? true:false
	
 
	if(ie4)
		document.all.hintergrund.style.height = h
	else if(ns4)	
		document.layers.hintergrund.style.height = h	
	else if(ns6)
		document.getElementById("hintergrund").style.height = h;
}