function paypage(url) {
	w = screen.availWidth - 10;
	h = screen.availHeight - 30;
	win = window.open(url, 'paypage', 'toolbar=0,location=0,directories=0,menuBar=0,resizable=1,scrollbars=1,top=0,left=0,width='+w+',height='+h);
	win.focus();
}