title: javascript client date format
body: <p>I had a problem on extjs date. Seem by default it using computer date to create a date. 
  I don't check up my pc and post the date.Then i found it based on American</p>
  
  <pre><code> M/d/yyyy.
  </code></pre>
  
  <p>After i change the system regional setting date to d-m-Y.Everthing work fine.
  So anybody know how extjs get client  date format ? </p>
  
  <pre><code>e.g 'YYYY-mm-dd' or 'M/d/yyyy' .
  </code></pre>
  
  <p>Since i need to parse the format from extjs code to php to mysql date format.
  I try to find stackoverflow and site but seem not found out,</p>