title: double call 'click' events in jquery
body: <p>I have a little problem with calling the 'click' function in input object. function assigns an event to the input:</p>
  
  <pre><code>function v_start() {
        $('#next').click(function(){
                      v_check();
        });
  }
  </code></pre>
  
  <p>now in javascript files name.js and name2.js i have:
  Copy code</p>
  
  <pre><code>$(function(){
        v_start();
  });
  </code></pre>
  
  <p>is just an example, but in this case the function v_check will be called twice in one click input. is a condition or way to made ​​the event only once ? why the second event will not overwrite?</p>