window.onresize=setVspacer;	
function getWindowHeight() {
var windowHeight=0;
if (typeof(window.innerHeight)=='number') {
  windowHeight=window.innerHeight;
}
else {
  if (document.documentElement&&document.documentElement.clientHeight) {
    windowHeight=document.documentElement.clientHeight;
  }
  else {
    if (document.body&&document.body.clientHeight) {
      windowHeight=document.body.clientHeight;
    }
  }
}
return windowHeight;
}
function setVspacer() {
var vc = document.getElementById('vspacer');
var head = document.getElementById('head');
if (vc!=null && head!=null)
	{
		vc.style.height=(getWindowHeight()-head.offsetHeight-36) +'px';
	}
}