title: checking text field value length
body: <p>I am trying to see if the text field length is at least a certain length.  here is my code:</p>
  
  <pre><code>&lt;form name="form2" id="form2" onsubmit="return validate()"&gt;
  length 4: &lt;input type="text" name = "t" id="t" /&gt;
  &lt;input type="button" name="submit" value="submit" /&gt;
  &lt;/form&gt;
  
  &lt;script&gt;
  function validate() {
      document.write("good");
      submitFlag = true;
      if(document.form2.t.value.length!=4){
          submitFlag=false;
          alert("ivalid length - 4 characters needed!");
      }
      return submitFlag;
  }
  &lt;/script&gt;
  </code></pre>
  
  <p>when I click submit, nothing happens.</p>