title: HTML5 Form Input Pattern Currency Format
body: <p>Using HTML5 I have an input field that should validate against a dollar amount entered. Currently I have the following markup:</p>
  
  <pre><code>&lt;input type="number" pattern="(\d{3})([\.])(\d{2})"&gt;
  </code></pre>
  
  <p>This works great for an amount that is greater than 100.00 and less than 1,000.00. I am trying to write the pattern (regex) to accept different dollar amounts. Maybe upwards of 100,000.00. Is this possible?</p>