diff --git a/app/views/shixuns/_add_collaborators.html.erb b/app/views/shixuns/_add_collaborators.html.erb
index 9b153f866..5c7d6f09e 100644
--- a/app/views/shixuns/_add_collaborators.html.erb
+++ b/app/views/shixuns/_add_collaborators.html.erb
@@ -19,7 +19,7 @@
               </ul>
             </div>
           </div>
-          <a href="javascript:void(0);" class="pop_close task-btn mb10" style="margin-top: 20px;">取消</a>
+          <a href="javascript:void(0);" class="task-btn mb10" style="margin-top: 20px;" onclick="reset_input();" >取消</a>
           <a href="javascript:void(0);" class="task-btn task-btn-blue" style="margin-top: 20px;" onclick="submit_add_collaborators_form()">确定</a>
       <% end %>
       <div class="cl"></div>
diff --git a/public/javascripts/edu/shixun.js b/public/javascripts/edu/shixun.js
index dddc113c5..c440b21d3 100644
--- a/public/javascripts/edu/shixun.js
+++ b/public/javascripts/edu/shixun.js
@@ -6,7 +6,9 @@ $(function() {
 
 var lastteSearchCondition = '';
 function search_not_teacher_f(e){
-    if($(e.target).val().trim() == "" || ($(e.target).val().trim() == lastteSearchCondition && lastteSearchCondition != ''))
+    console.log($(e.target).val().trim());
+    console.log(lastteSearchCondition);
+    if($(e.target).val().trim() == "")
     {
         return;
     }
@@ -27,4 +29,4 @@ function submit_add_collaborators_form(){
     }else{
         $("#add_teacher_notice").html("请至少选择一个用户").show();
     }
-}
\ No newline at end of file
+}