title: Stripping non alphabetic and numeric characters before form submit, using jquery
body: <p>i have an ajax form
  i know i can use like </p>
  
  <pre><code>  return str = str.replace(/\D/g,'');
  </code></pre>
  
  <p>to strip stuff before submit
  whats the best way to stop form submit when characters that are not alphabetic or numeric are inputed</p>
  
  <p>my the ajax search form is at <a href="http://vitamovie.com/movies" rel="nofollow noreferrer">vitamovie.com/movies</a></p>