function set_layout() {
	if(document.all) {

		document.all.content_box.style.height=(document.body.clientHeight - 140) + 'px';
	} else if(window.innerHeight) {
		document.getElementById('content_box').style.minHeight = (window.innerHeight - 140) + 'px';
	}
}
if (window.innerWidth) {
  window.onresize = set_layout;
}