function screenDistance(){
	sh=screen.height;
	if (screen.height<=768){
		b=document.getElementsByTagName("body");
		[0].className="distance1";		
	}
	if (screen.height<=864) {
		b=document.getElementsByTagName("body");
		b[0].className="distance2";
	}
	if (screen.height > 864){
		b=document.getElementsByTagName("body");
		b[0].className="distance3";
	}
}

function hideSub( ) 
{
  if (!document.getElementsByTagName)
     return;
  var mnu = document.getElementById("menu");
  var toplis = mnu.getElementsByTagName("li");
  for (it = 0; it < toplis.length; it++) { /* each top li */
    var sublis = toplis[it].getElementsByTagName("li");
    for (is = 0; is < sublis.length; is++) { /* each sub li */
       sublis[is].style.display = 'none';
    }
  }
}

function mShow(Me)
{
	if (!Me.getElementsByTagName)
	return;
	// alle menus einklappen
	hideSub();
	var mylis = Me.getElementsByTagName("li");
	if (!mylis)
	return;
	for (j = 0; j < mylis.length; j++) {
	  if (mylis[j].style.display == 'block')
	    mylis[j].style.display = 'none';
	  else
	    mylis[j].style.display = 'block';
	}
}