title: jquery change event trigger
body: <p>I have a problem in need of help of JQuery. 
  JQuery give my input to increase the use of case change.
  the code:</p>
  
  <pre><code>#(".inp").bind("change",function (){
    if(isNaN(this.value)){
      this.value = 0;
    }
  }
  </code></pre>
  
  <p>When I first time to enter characters, change case happened, input values changed to 0 But when I enter the <strong>same</strong> character a second time, change does not happen.</p>