anchor.diff:  	  </tr>
   	  <tr>
   	    <td>QQ：</td>
  -	    <td><input type="text" name="qq" value=""/></td>
  +	    <td><input type="text" name="QQ" value=""/></td>
   	    <td>&nbsp;</td>
   	  </tr>
   	  
  
positive.code: 	  <tr>
  	    <td>意向学科：</td>
  	    <td>
  	    	<select name="crmCourseType.courseTypeId" onchange="">
  			    <option value="">----请--选--择----</option>
  			    <option value="2c9091c14c78e58b014c78e829b70008">java基础</option>
  			    <option value="2c9091c14c78e58b014c78e867b80009">java就业</option>
  			</select>
  	    	&nbsp;&nbsp;&nbsp;意向班级：
      		<select name="crmClass.classId">
  				<option value="">----请--选--择----</option>
  			</select>
  	    </td>
  
negative.code: 	  </tr>
  	</table>
  </form>
   <script type="text/javascript">
  	 function showClasses(obj) {
  		 var courseTypeId = obj.value;
  		 //alert("测试" + courseTypeId);
  		 //2.1 获得引擎
  		 var xmlHttp = null;
  		 if (window.XMLHttpRequest)
  		 {// code for IE7+, Firefox, Chrome, Opera, Safari
  			 xmlHttp=new XMLHttpRequest();
  		 }
  		 else
  		 {// code for IE6, IE5
  			 xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  		 }
  		 //2.2重点是回调函数
  		 xmlHttp.onreadystatechange = function () {
  			 if(xmlHttp.readyState == 4 && xmlHttp.status == 200){
  				 //3、获取响应数据，并将json字符串提取出来
  				 var responseDate = xmlHttp.responseText;
  				 //alert(responseDate);
  				 //3.1 将json字符串转为json对象
  				 var jsonDate = eval("(" + responseDate + ")");
  				 //3.2 获取页面上post的
  				 var classSelectedElement = document.getElementById("classId");
  				 //3.3 遍历json对象，将其输出到页面
  				 classSelectedElement.innerHTML = "<option>----请--选--择----</option>";
  				 for(var i = 0; i < jsonDate.length; i++) {
  					 var classObj = jsonDate[i];
  					 var classId = classObj.classId;
  					 var className = classObj.className;
  					 classSelectedElement.innerHTML += "<option value='" + classId + "'>" + className + "</option>";
  				 }
  
  
  			 }
  
  		 };
  		 //2.3 创建连接
  		 var url = "${pageContext.request.contextPath}/findClassesByCourseTypeId.action?courseType.courseTypeId=" + courseTypeId;
  		 xmlHttp.open("GET", url);
  		 //2.4 发送请求
  		 xmlHttp.send(null);
  	 }
  
   </script>
   <script type="text/javascript" src="${pageContext.request.contextPath}/js/showClassesByAjax.js"/>
  </body>
  </html>
  