function unfoldnews() {
  document.getElementById('left').style.visibility='visible';
  document.getElementById('middle').style.marginLeft='167px';
  document.getElementById('navigation').style.marginLeft='167px';
  document.getElementById('vnewsimage').style.visibility='hidden';
}
function foldnews() {
  document.getElementById('left').style.visibility='hidden';
  document.getElementById('middle').style.marginLeft='20px';
  document.getElementById('navigation').style.marginLeft='20px';
  document.getElementById('vnewsimage').style.visibility='visible';
}
function sessiontimer() {
  sessiontime=sessiontime-1;
  if ( sessiontime<60 ) {
     gray();
  }
 setTimeout("sessiontimer()",1000);
}
function gray() {
  document.body.style.background="#aaa";
  document.body.style.filter="alpha(Opacity=50)";
  document.body.style.opacity="0.5";
  document.getElementById('sessiontime').display="inline";
}
function checksize() {
  if ( document.documentElement.clientWidth < 900 ) {
    document.getElementById('right').style.visibility="hidden";
    document.getElementById('left').style.visibility="hidden";
    document.getElementById('middle').style.marginRight='0px';
    document.getElementById('middle').style.marginLeft='0px';
    document.getElementById('vnewsimage').style.visibility='hidden';
  }
}