function openHelp(url, windowName, w, h, scroll) {
w=700;
h=500;
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll;
	win = window.open(url, windowName, winprops);
	//alert("works! craig!");
	if (parseInt(navigator.appVersion) >= 4) { 
		win.window.focus(); 
	}
}