title: Block text fields if others contain text?
body: <p>is there a way (preferrably with jQuery) to block text inputs if others contain text?</p>
  
  <p>I can see ways to block input fields all the time, but not dynamically as others contain text.</p>
  
  <pre><code>&lt;input name="inputone" id="i_one" type="text" value=""&gt;
  &lt;input name="inputtwo" id="i_two" type="text" value=""&gt;
  &lt;input name="inputthree" id="i_three" type="text" value=""&gt;
  </code></pre>
  
  <p>It's a real simple set-up. I just need if "i_one" contains any text, block "i_two" and "i_three" from receiving any input. but if user deletes what they've typed in "i_one" before submitting the form, the block will be lifted so user can use a different field instead.</p>