robustness for errors

if the web server returns an error, then make sure to handle (!!err)

        <html><head>
        <meta http-equiv="content-type" content="text/html;charset=utf-8">
        <title>503 Over Quota</title>
        <style><!--
        body {font-family: arial,sans-serif}
        div.nav {margin-top: 1ex}
        div.nav A {font-size: 10pt; font-family: arial,sans-serif}
        span.nav {font-size: 10pt; font-family: arial,sans-serif; font-weight: bold}
        div.nav A,span.big {font-size: 12pt; color: #0000cc}
        div.nav A {font-size: 10pt; color: black}
        A.l:link {color: #6f6f6f}
        A.u:link {color: green}
        //--></style>
        
        </head>
        <body text=#000000 bgcolor=#ffffff>
        <table border=0 cellpadding=2 cellspacing=0 width=100%>
        <tr><td bgcolor=#3366cc><font face=arial,sans-serif color=#ffffff><b>Error</b></td></tr>
        <tr><td>&nbsp;</td></tr></table>
        <blockquote>
        <H1>Over Quota</H1>
        This application is temporarily over its serving quota.  Please try again later.
        
        <p>
        </blockquote>
        <table width=100% cellpadding=0 cellspacing=0><tr><td bgcolor=#3366cc><img alt="" width=1 height=4></td></tr></table>
        </body></html>