title: Disable symbols and non-letters in input field
body: <p>I would like to disable all symbols entry into an input field  that are not associated with following: letters or numbers or spaces or ampersand symbol or full stop.</p>
  
  <p>E.g.
  ALLOWED: A-Z, a-z, 0-9, &amp;, ., and space is allowed. </p>
  
  <p>NOT ALLOWED: Every other character e.g. ! @ # $ % ^ * ( ) - + = [ ] ; : ' " &lt; > , / ? | = ` ~ etc.</p>
  
  <pre><code>&lt;input id="ItemName" type="text" /&gt;
  </code></pre>