function PopWindow(spURL, spNomFenetre, npWidth, npHeight) 
{
	var nlLeft
	var nlTop
	var slPropriete
	
	nlLeft = (screen.width) ? (screen.width - npWidth) / 2 : 100;
	nlTop = (screen.height) ? (screen.height - npHeight) / 2 : 100;
	slPropriete = 'width=' + npWidth + ', height=' + npHeight + ', top=' + nlTop + ', left=' + nlLeft + ', menubar=no, scrollbars=yes, toolbar=no, location=no, directories=no, resizable=no'
	window.open(spURL, spNomFenetre, slPropriete).focus();
}