<!--
var newwindow = ''
function func_popupcenter(URLtoOpen, windowName, popupwidth, popupheight, windowFeatures) {
	//determine screen size
	var screenwidth = 0, screenheight = 0;
	if (document.all || document.layers) {
		screenwidth = screen.Width;
		screenheight = screen.Height;
	}
	var leftPos = ((screenwidth-popupwidth)/2), topPos = ((screenheight-popupheight)/2);

	if (newwindow.location && !newwindow.closed) {
		newwindow.location.href = URLtoOpen;
		newwindow.resizeTo(popupwidth+10,popupheight+35);
		newwindow.focus(); }
	else {
		newwindow=window.open(URLtoOpen,windowName,'width=' + popupwidth + ',height='+ popupheight +',top=' + topPos + ',left=' + leftPos + ',' + windowFeatures);
	}

}
//-->