var remWin1 = 0;
var infoWin1 = new Array(10);
var iWin1 = 2;

function popupWin(url, width, height)
{
	if (remWin1 != 0) {
		if (infoWin1[remWin1].closed == false) {
			infoWin1[remWin1].close();
		}
	}

	var wheight = height + 40;
	var wwidth = width + 20;

	if (document.all) {
		wwidth = wwidth + 5;
	}
    var scrx = (screen.availWidth - width) / 2;
    var scry = (screen.availHeight - height) / 2;

	features = "width="+wwidth+",height="+wheight+",resizable=yes,scrollbars=no,toolbar=no,menubar=no,status=no,directories=no,location=no";
	try {
		infoWin1[iWin1] = window.open(url,iWin1,features)
// this condition is for older netscape and seems to be read by modern firefoxes too,
// so commented out (E.N. 2009-04-17):
//		if (navigator.appName != 'Netscape')
		infoWin1[iWin1].moveTo(scrx,scry);
		infoWin1[iWin1].focus();
		remWin1 = iWin1;
		if (iWin1 < 7) {
			iWin1++;
		} else {
			iWin1 = 1;
		}
	} catch(e){}
}

onunload = function()
{
	if (remWin1 != 0) {
		if (infoWin1[remWin1].closed == false) {
			infoWin1[remWin1].close();
		}
	}
}