title: this.setOptions is not a function in modal.js
body: <p>I faced some issues when I was doing upgrade my Joomla version 1.5 to the latest current version. When I have to go for an upgrade version using jUpgrade component, it gives me a jquery error. Like this : </p>
  
  <p><strong>Type Error : this.setOptions is not a function in modal.js</strong></p>
  
  <p>I have disabled this but it wouldn't work for me.</p>