Are you sure your javascript ajax section is running? Are you sure it is running when you want it to run? And most importantly is it sending the correct parameters to the CGI script (note that you do not validate input data in your CGI script - that's a big problem) ? Is it perhaps running after you hit submit? Doesn't action="cgi-bin/login.cgi" in the form means that when you hit submit the CGI script is called? If so, then when does the ajax call is made?

Also important is that your ajax call xmlhttp.open("GET", "cgi-bin/login.cgi", true); does not send any parameters. I don't think it sends the form or the user email at all!

btw, unless you state in some CSS otherwise, <div class="error-msg" is showing by default, no?


In reply to Re: Suggestions on how to show an "invalid email address" box in the login page by bliako
in thread Suggestions on how to show an "invalid email address" box in the login page by underTheRadar

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.