title: Clear field on Focus & Submit
body: <p>I've got a form setup with 2 text boxes that have default values that can be cleared on focus. The boxes are optional not compulsary. So ultimatley the form can be submitted without them, But when the form is submitted with the default values set it appears to pass them on POST. </p>
  
  <p>Is there anyway to clear them from the post data and submit them as NULL / Blank values.</p>
  
  <p>My form code is as follows :</p>
  
  <pre><code>&lt;input id="town" name="SeV[2]"  type="text" autocomplete="off" style="width: 149px; color:#ccc;" onfocus="if(this.value == 'Enter Town / City') this.style.color = '#000'; { this.value = ''; }" value="Enter Town / City" class="field"&gt;
  
  &lt;input type="text" style="width: 149px; color:#ccc;" maxlength="255" name="SeV[4]" onfocus="if(this.value == 'e.g Football') this.style.color = '#000'; { this.value = ''; }" value="e.g Football"&gt;
  </code></pre>
  
  <p>Thanks in advance.</p>