Droppable accepted function : UI Droppable « jQuery « JavaScript Tutorial

<html lang="en">
  <link type="text/css" href="js/themes/base/ui.all.css" rel="stylesheet" />
  <script type="text/javascript" src="js/jquery-1.3.2.js"></script>
  <script type="text/javascript" src="js/ui/ui.core.js"></script>
  <script type="text/javascript" src="js/ui/ui.draggable.js"></script>
  <script type="text/javascript" src="js/ui/ui.droppable.js"></script>  
  <link type="text/css" href="js/demos.css" rel="stylesheet" />
  <script type="text/javascript">
    $(function() {
      var dropOpts = {
        accept: dragEnrol,
        activeClass: "activated"
      function dragEnrol(el) {
        return (el.attr("id") == "drop1") ? true : false;
    <div class="drag" id="drop1">drop1</div>
    <div class="drag" id="drop2">drop2</div>
    <div id="target">target</div>


30.143.UI Droppable
30.143.1.jQuery UI Droppable - Accept Demo
30.143.2.jQuery UI Droppable - Simple photo manager
30.143.3.jQuery UI Droppable - Prevent propagation
30.143.4.jQuery UI Droppable - Revert draggable position
30.143.5.jQuery UI Droppable - Visual feedback
30.143.6.Get relative and absolute position of the dropped object
30.143.7.Droppable object
30.143.8.Mark accepted object
30.143.9.Mark active class
30.143.10.Droppable accepted function
30.143.11.Drag and drop events: activate, deactivate, drop, out, over
30.143.12.Drop to different objects and get their id