title: While clicking on submit button null value should get passed and not a default one
body: <p>Need an amendment to the below code, when I tested this code it was working fine but, what happened is that when user clicks on submit button the default value gets propagate say default value was username then when user doesn't entered anything inside text box the default value passed as a &quot;username&quot; only. But what I  want is the value should get is a blank value when user doesn't enter anything (i.e. null value) although text box may show default value (i.e. username). Below is the code for the same:</p>
  <pre><code>&lt;FORM action=&quot;http://localhost:2013&quot; method=&quot;post&quot;&gt;
  &lt;INPUT type=&quot;text&quot; size=&quot;25&quot; value=&quot;Username&quot; onFocus=&quot;if(this.value == 'Username') {this.value = '';}&quot; onBlur=&quot;if (this.value == '') {this.value = 'Username';}&quot; /&gt;
  &lt;INPUT type=submit value=Submit&gt;
  &lt;/FORM&gt;
  </code></pre>
  <p>So basically I want display name only for &quot;display&quot; purpose when user puts a cursor into text box everything gets wiped out but if he doesn't enter anything null values.</p>