function popup (url, width, height) {
	var thisWidth, thisHeight, thisLeft, thisTop, newLeft, newTop;
	ie = (document.all)? 1 : 0;
	if (ie) {
		thisWidth = document.body.clientWidth;
		thisHeight = document.body.clientHeight;
		thisLeft = document.parentWindow.screenLeft;
		thisTop = document.parentWindow.screenTop;
	} else {
		thisWidth = self.outerWidth - 16;
		thisHeight = self.outerHeight - 162;
		thisLeft = 200;
		thisTop = 200;
	}
	newLeft = thisLeft + (thisWidth / 2) - (width / 2);
	newTop = thisTop + (thisHeight / 2) - (height / 2) - 45;
	newwindow = window.open(url, "", "scrollbars=yes,width=" + width + ",height=" + height + ",left=" + newLeft + ",top=" + newTop);
}