function setWidth() {
	maxwidth = document.body.offsetWidth;
	
	width = ((maxwidth-1024)/2);
	
	if (width>0)
	{
		document.getElementById('leftbar').style.width=width+'px';
		document.getElementById('rightbar').style.width=width+'px';
		document.getElementById('leftbar').style.display='block';	
		document.getElementById('rightbar').style.display='block';
	} else {
		document.getElementById('leftbar').style.display='none';	
		document.getElementById('rightbar').style.display='none';	
	}

}