socialforge/app/views/admin/messages.html.erb

# encoding: utf-8
<%= javascript_include_tag "/assets/kindeditor/kindeditor",'/assets/kindeditor/pasteimg'  %>
<h3 style="float: left">
  <%=l(:label_system_message)%>
</h3><br/>
<div style="padding-top: 20px; padding-left: 5px;">
  <%= form_for(@admin_messages, :html => {:id =>'system_message_form', :multipart => true}) do |f| %>
      <div class="field">
        <%= f.kindeditor :content, :edit_id => 'system_message',
                         :width => '87%',
                         :resizeType => '0',
                         :no_label => true
        %>
      </div>
      <div>
        <p id="content_notice_span" class="ml55"></p>
      </div>
      <div class="actions">
        <%= f.submit l(:label_submit),:class => "small", :onclick => "system_message.sync;" %>
      </div>
  <% end %>
</div>
<script>
  function system_message_length()
  {
      var obj = $("#system_message").value;
      if (obj.length == 0) {
          $("#content_notice_span").text("内容不能为空");
          $("#content_notice_span").css('color', '#ff0000');
          $("#content_notice_span").focus();
          return false;
      }
      else if (obj.length > 255) {
          $("#content_notice_span").text("内容过长，超过255个字符");
          $("#content_notice_span").css('color', '#ff0000');
          $("#content_notice_span").focus();
          return false;
      }
      else {
          $("#content_notice_span").text("填写正确");
          $("#content_notice_span").css('color', '#008000');
          return true;
      }
  }
        function submit_message()
        {
            if (system_message_length())
            {
                $("#system_message_form").submit();
            }
        }
</script>