function pdn()
{
	
	var width = 1008;
	var height = 646;
	var left = Math.round((screen.availWidth - width) / 2);
	var top = Math.round((screen.availHeight - height) / 2) - 30;
	
	if (left < 0) { left = 0; }
	if (top < 0) { top = 0; }
	
	var win = window.open('pdn.html','pdn','menubar=0,toolbar=0,location=0,directories=0,scrollbars=0,resizable=0,status=0,width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);
	win.focus();
	
}