var putItThere = null; 
var chasm = screen.availWidth;
var mount = screen.availHeight;

function deadCenter(url,w,h) {
	var options = 'scrollbars=yes,toolbar=no,directories=no,menubar=no,location=no,resizable=yes,status=no,';
	putItThere = window.open(url,'posB',options + 'width=' + w + ',height=' + h + ',left=' + ((chasm - w - 10) * .5) + ',top=' + ((mount - h - 30) * .5));
	return putItThere;
}