socialforge/app/views/news/_course_form.html.erb

<script type="text/javascript">
    function regexTitle()
    {
        var name = $("#news_title").val();
        if(name.length ==0)
        {
            $("#title_notice_span").text("标题不能为空");
            $("#title_notice_span").css('color','#ff0000');
            $("#title_notice_span").focus();
            return false;
        }
        else if(name.length <= 60)
        {
            $("#title_notice_span").text("填写正确");
            $("#title_notice_span").css('color','#008000');
            return true;
        }
        else
        {
            $("#title_notice_span").text("标题超过60个字符");
            $("#title_notice_span").css('color','#ff0000');
            $("#title_notice_span").focus();
            return false;
        }
    }

    function regexDescription()
    {
        var name = $("#news_description").val();
        if(name.length ==0)
        {
            $("#description_notice_span").text("描述不能为空");
            $("#description_notice_span").css('color','#ff0000');
            $("#description_notice_span").focus();
            return false;
        }
        else
        {
            $("#description_notice_span").text("填写正确");
            $("#description_notice_span").css('color','#008000');
            return true;
        }
    }

    function submitNews()
    {
        if(regexTitle() && regexDescription())
        {
            $("#news-form").submit();
        }
    }

    function submitFocus(obj)
    {
        $(obj).focus();
    }
</script>
<li  class="ml45">
    <label><span class="c_red">*</span>&nbsp;<%= l(:field_title) %>&nbsp;&nbsp;：</label>
    <input  type="text" name="news[title]" class="hwork_input" id="news_title" size="60" onkeyup="regexTitle();" maxlength="60" placeholder="60个字符以内">
    <span id="title_notice_span"></span>
  </li>
  <li class="ml45">
    <label class="fl" ><span class="c_red">*</span>&nbsp;<%= l(:field_description) %>&nbsp;&nbsp;：</label>
    <textarea id="news_description" name="news[description]" placeholder="最多3000个汉字(或6000个英文字符)"  class="hwork_text fl" onkeyup="regexDescription();" ></textarea>
    <span id="description_notice_span"></span>
  </li>
  <div class="cl"></div>
  <li class="ml45">
    <label>&nbsp;&nbsp;<%= l(:label_attachment_plural) %>&nbsp;&nbsp;：</label>
    <%= render :partial => 'attachments/form', :locals => {:container => @news} %>
  </li>
  <li class=" ml90" >
    <%= link_to l(:button_create), "#", :onclick => 'submitNews();', :onmouseover => 'submitFocus(this);', :class => 'blue_btn fl c_white' %>
    <%= link_to l(:button_cancel), course_news_index_path(@course), :onclick => '$("#add-news").hide()', :class => 'blue_btn grey_btn fl c_white' %>
    <div class="cl"></div>
  </li>
  <!-- <#%= wikitoolbar_for 'news_description'%>-->