window.onload = getBackground;

function getBackground()
{
  try
   {
    var imgurl = 'http://www.onlinestreams.de/background.exe?width=' + document.getElementById('background').offsetWidth + '&height=' + document.getElementById('background').offsetHeight;
    document.getElementById('background').style.backgroundImage = "url(" +  imgurl + ")";
    }
    catch (e)
   {
   }
}