得到tinymce富文本编辑中的内容

<script type="text/javascript">
     function submitfcn(form){
       var myform = form[0];
       var title = document.getElementById('id_title').value;
       var content =  tinyMCE.getInstanceById('id_content').getBody().innerHTML;  //得到tinymce富文本编辑中的内容
       var exist = content.match(//{name/}/g)&&content.match(//{url/}/g);
       var done = true;
       if(!title){
            done = false;
            document.getElementById('id_title').focus();
            alert('请填写邮件标题！');
       }
    
       if(!exist){
           done = false;
           tinyMCE.getInstanceById('id_content').getBody().focus();
           alert('请填写邮件内容！');
       }
       if(done){
           $.ajax({
           type: 'POST',
           url: "/emailrecord/sendemaildialog/",
           data: $(myform).serialize(),
           dataType:'json',
           success: function(data){
                if(data.result==1){
                    alert('邮件发送成功。');
                    location.href = '/progress/summary/';
                }else if(data.result==0){
                    alert('统计失败！');
                    location.href = '/progress/summary/';
                }else{
                    alert('邮件没有发送，因为您没选人员或所选人员已完成了问卷的录入！');
                }
            },
         error:function(re,status){
           }
        });
       }else{
           return false;
       }
     }
  
 </script>     
<table cellspacing="0" cellpadding="0" border="0"  class="display tdBc first_table" width="100%">
        <caption>
            <span><strong>邮件发送  {{term}}</strong>&nbsp;&nbsp;&nbsp;</span><a href="/progress/summary/" style="float: right;">返回&nbsp;&nbsp;&nbsp;&nbsp;</a>
        </caption>
   <tr><td>
 
      <fieldset class="module aligned ">
   
        <div class="form-row">
                <div>
                    <label for="id_title" class="required">邮件标题:</label><input id="id_title" type="text" name="title" maxlength="128" />
                </div>
        </div>
        <div class="form-row">
            <div>
                <label for="id_content" class="required">邮件内容:</label>
               <textarea id="id_content" rows="10" cols="40" name="content">
                    &lt;br /&gt;
                    邮件内容模板如下：但是{name}{url}，不能更改，一定要存在！该行请删除,谢谢&lt;br /&gt;&lt;br /&gt;
                   尊敬的某公司员工  {name}：&lt;br /&gt;
                   请尽快登录360满意度测评系统({url})，请用点击提供的链接的登入系统，进行填写问卷。&lt;br /&gt;
                    如果对网络平台操作存在疑问，请联系马神通，&lt;br /&gt;&lt;br /&gt;
                    本邮件为系统邮件，请勿回复！&lt;br /&gt;
                 &lt;label style="margin-left:550px;"&gt;人力资源部&lt;/label&gt;
               </textarea>
               <script type="text/javascript">
                 tinyMCE.init({
                              language:"zh",
                              theme : "advanced",
                              mode : "textareas",
                              theme_advanced_toolbar_location : "top",
                              theme_advanced_toolbar_align : "left",
                              theme_advanced_statusbar_location : "bottom",
                              height: 300, width: 800,
                              content_css : "/static/tiny_mce/themes/advanced/skins/default/content.css"
                        });
               </script>
           </div>
        </div>www.2cto.com
   </fieldset>

    <div>
        
    <input type="button" value="确定" onclick="submitfcn($('form'))"/>
    </div>