var opened, openWindow;
opened = false;

function doPop(a_height, a_width, a_url, a_scrollbars)
{
	if ( opened )
	{
		if ( !openWindow.closed ) { openWindow.close(); }
	}
	
	openWindow = window.open(
		a_url, "popup001", 
		"height=" + a_height + ",width=" + a_width + ",resizable=no,scrollbars=" + a_scrollbars + ",toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no"
	);

	opened = true;
}

winImg = null;
function doImgPopup(a_sUrl, a_sTitle) {
	if ( winImg ) {
		winImg.close();
	}

	winImg = window.open(
		'/img.php?url=' + a_sUrl + '&title=' + a_sTitle, 'imagePopup', 
		'height=480,width=640,resizable=no,scrollbars=auto,toolbar=no,location=no,directories=no,status=no,menubar=no,copyhistory=no');

	winImg.focus();
}