Jquery method to dynamically add input box_jquery

<!-- 页头 --> 
<#include "../common/head.ftl"> 
<div id="onFailureDiv" class="alert alert-danger navbar-fixed-top" style="text-align:center; display:none"></div> 
<div class="container" style="min-height:100%; height:100%;margin-top:100px;"> 
<form id="addressForm" class="form-horizontal" method="post" action="/restaurant/${(user.userId)}/addAddress"> 
  <div class="form-group dynamic-collection" id="course-goals-form-group"> 
  <div class="col-md-2 control-label"><label>地址</label></div> 
  <div class="col-md-8 controls"> 
   <ul id="ItemCourseList" class="list-group sortable-list" data-role="list" style="margin-bottom:10px;"></ul> 
   <div class="input-group"> 
   <input id="courseInput" type="text" data-role="item-input" class="form-control"> 
   <span class="input-group-btn"> 
    <button id="addItemCourse" class="btn btn-default" type="button" data-role="item-add" >添加</button> 
   </span> 
   </div> 
  </div> 
  </div> 
 </form>  
<!-- container --> 
</div> 
<script type="text/javascript" src="${app.basePath}/resources/js/jquery.form.js"></script> 
<script> 
 $.schoolFn = { 
 addCourseItem: function(obj){ 
  $("#ItemCourseList").append("<li class='list-group-item clearfix'><span class='glyphicon glyphicon-resize-vertical sort-handle'></span>"+obj+"<input type='hidden' name='goals' value='"+obj+"'><button type='button' class='close delete-btn deleteItem' onclick='deleteCourseItem(this);' title='删除'>×</button></li>"); 
 }, 
 addItem: function(obj){ 
  $("#itemList").append("<li class='list-group-item clearfix'><span class='glyphicon glyphicon-resize-vertical sort-handle'></span>"+obj+"<input type='hidden' name='audiences' value='"+obj+"'><button type='button' class='close delete-btn deleteItem' onclick='deleteItem(this);' title='删除'>×</button></li>"); 
 }, 
 } 
 $("#addItemCourse").click(function(){ 
  var item=$('#courseInput').val(); 
  if(item.trim()==""){ 
  $('#courseInput').val(""); 
  }else{ 
  $.schoolFn.addCourseItem(item); 
  $('#courseInput').val(""); 
  } 
 }); 
 function deleteCourseItem(obj){ 
  $(obj).parent().replaceWith(""); 
 } 
</script> 
<script> 
 $(document).ready(function(){ 
  $('#addressForm').ajaxForm(function(json) { 
   if(json.status == "success") { 
    $("#onFailureDiv").html("添加成功").slideDown().delay(3000).hide(1000); 
   }else { 
    $("#onFailureDiv").html(json.errorMsg).slideDown().delay(3000).hide(1000); 
   } 
  }); 
 }); 
</script> 
<!-- 页脚 --> 
<#include "../common/footer.ftl"/>