title: onsubmit="return false" has no effect on Internet Explorer 7/8 (form is still submitted)
body: <p>I have a form that will be submitted by javascript code triggered in "onsubmit" of the  tag. Works fine on all browsers - but not on IE7/IE8.</p>
  
  <p>What can I do?</p>
  
  <pre><code>&lt;form action="/dosomething.htm" method="GET" onsubmit="submitmyform();return false"&gt;
    [...]
    &lt;input type="submit" value="Go"&gt;
  &lt;/form&gt;
  </code></pre>