function openPopup(url,intWidth,intHeight){

	var intLeft = (screen.availWidth / 2) - (intWidth / 2 );
	var intTop = (screen.availHeight / 2) - (intHeight / 2 );
	var strAttrib = 'toolbar=0,location=0,resizable=0,scrollbars=0,'+ 'width=' + intWidth + ',height=' + intHeight + ',top=' + intTop + ',left=' + intLeft;
	var objWin = window.open ('/js/image.php?img='+url+'', 'popup', strAttrib);

}