function popup(_url, wid, hei){
	
	var w = screen.width;
	var h = screen.height;
	var windowSize = "width=" + w + ",height=" + h ;
	var newwin = window.open(_url,"newwin","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=yes," + windowSize);
	newwin.moveTo(0,0);
}

$(document).ready(function() {
	$("#main").center();
});