function adjustNewsBox()
{
  var tot_h = 0;
  if ( navigator.appName.indexOf('Microsoft') != -1 )
    tot_h = document.documentElement.offsetHeight;
  else
    tot_h = window.innerHeight;
  var overview_h = document.getElementById("index_overview").offsetHeight;
  var sub_news_elem = document.getElementById("index_sub_news");
  var sub_news_h = tot_h - overview_h - 175;
  if ( sub_news_h < 150 )
    sub_news_h = 150;
  if ( sub_news_elem )
    sub_news_elem.style.height = sub_news_h+"px";
}

window.onload = adjustNewsBox;
window.onresize = adjustNewsBox;