title: html-login form not working
body: <p>I have a child page LoginContent.aspx which contains a login form. If the user logs in he should be redirected to my Welcome.aspx page. But if I press the login button the page just reloads itself, nothing happens. 
  The codebehind on this page is empty. Both LoginContent.aspx and Welcome.aspx are child forms of the same master page.</p>
  
  <pre><code>&lt;form method="post" action="~/Welcome.aspx"&gt;
      Username: &lt;input type="text" name="username" size="15" /&gt;&lt;br /&gt;
      Password: &lt;input type="password" name="passwort" size="15" /&gt;&lt;br /&gt;
  &lt;input type="submit" value="Login"/&gt;&lt;/p&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>I know I could use the asp.net login control but I want more control over things.</p>