function setFrame() {
	var myWidth = 0, myHeight = 0;
	
	if (typeof( window.innerWidth ) == 'number') {
		//Non-IE
		myWidth = window.innerWidth;
		myHeight = window.innerHeight;
 	} else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
		myHeight = document.documentElement.clientHeight;
	} else if(document.body && (document.body.clientWidth || document.body.clientHeight)) {
		//IE 4 compatible
		myWidth = document.body.clientWidth;
		myHeight = document.body.clientHeight;
	}

	divleft = Math.round(myWidth / 2) - 550;
	
	h = document.getElementById('maintable').offsetHeight;
	document.getElementById('pagebg').style.left = divleft + "px";
	document.getElementById('pagebg').style.height = h + "px";

}