新增题目时，增加标题不能为空的js验证

app/views/poll/_new_MC.html.erb

@@ -34,7 +34,7 @@
         </ul>
       </div>
       <div class="ur_editor_footer">
-        <a class="btn btn_dark btn_submit" data-button="ok" onclick="$(this).parent().parent().parent().submit();">
+        <a class="btn btn_dark btn_submit" data-button="ok" onclick="add_poll_question($(this));">
           <%= l(:label_button_ok)%>
         </a>
         <a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">

app/views/poll/_new_MCQ.html.erb

@@ -33,7 +33,7 @@
       </ul>
     </div>
     <div class="ur_editor_footer">
-      <a class="btn btn_dark btn_submit" data-button="ok" onclick="$(this).parent().parent().parent().submit();">
+      <a class="btn btn_dark btn_submit" data-button="ok" onclick="add_poll_question($(this));">
         <%= l(:label_button_ok)%>
       </a>
       <a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">

app/views/poll/_new_mulit.html.erb

@@ -13,7 +13,7 @@
     <!--<label>高 <input name="rows" type="number" min="1" value="5"> 行</label>-->
   </div>
   <div class="ur_editor_footer">
-    <a class="btn_submit" data-button="ok" onclick="$(this).parent().parent().parent().submit();">
+    <a class="btn_submit" data-button="ok" onclick="add_poll_question($(this));">
       <%= l(:label_button_ok)%>
     </a>
     <a class="btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">

app/views/poll/_new_single.html.erb

@@ -8,7 +8,7 @@
         <label for="ur_question_require">必答</label>
       </div>
       <div class="ur_editor_footer">
-        <a class="btn_submit" data-button="ok" onclick="$(this).parent().parent().parent().submit();">
+        <a class="btn_submit" data-button="ok" onclick="add_poll_question($(this));">
           <%= l(:label_button_ok)%>
         </a>
         <a class="btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">

app/views/poll/_poll_form.html.erb

@@ -23,6 +23,14 @@
           $("#new_poll_question").html("<%= escape_javascript(render :partial => 'new_mulit') %>");
           $("#poll_questions_title").focus();
       }
+
+      //确定按钮
+      function add_poll_question(obj)
+      {
+          var title = $.trim($("#poll_questions_title").val());
+          if(title.length == 0){alert("标题不能为空");}else{doc.parent().parent().parent().submit();}
+      }
+
       //问卷头
       function pollsCancel(){$("#polls_head_edit").hide();$("#polls_head_show").show();}
       function pollsSubmit(doc){