function openWin(URL, w, h) {
	w = w + 40;	// allow room for frame
	h = h + 50; 	// allow room for frame
	// argStr = 'menubar=1,resizable=1'; // resizable=1 is handy to see if window is big enough
	argStr = 'resizable=1'+',width='+w+',height='+h;
	win = window.open(URL, 'x', argStr);
	// win.document.bgColor="black"; // was IE only (access denied now). To do in Moz, make an html page
}