function OpenWin(url, height, width)
{
	window.open(url,'winPopUp', PopupPosition(height,width) + ',toolbar=no,location=no,menubar=no,directories=no,scrollbars=yes,resizable=yes,status=no');
}

function PopupPosition(wPopup,hPopup)
{
	var sh, sw;
				  							
	with (window.screen)
	{
		sh = height;
		sw = width;
	}
												
	return "height=" + hPopup + ",width=" + wPopup + ",top=" + (sh/2 - hPopup/2) + ",left=" + (sw/2 - wPopup/2)
}