title: RegEx making a cost field validation
body: <p>What could i use in a regexp variable to ensure a field contains only nummbers but also allows a full stop (period) and various money symbols (£,$)</p>
  
  <p>Hope you can help!</p>
  
  <p>Thanks</p>
  
  <p>Here is what i have so far:</p>
  
  <p><code>var validRegExp = /^[0-9]$/;</code></p>