项目搜索，增加搜索条件不能为空的提示

app/views/layouts/base_projects.html.erb

@@ -40,10 +40,38 @@
                                     </td>
 									<td rowspan="2" width="250px">
 										<div class="top-content-search">
-											<%= form_tag(projects_search_path, :method => :get) do %>
-											<%= text_field_tag 'name', params[:name], :size => 20 %>
-											<%= hidden_field_tag 'project_type', params[:project_type] %>
-											<%= submit_tag l(:label_search), :class => "enterprise", :name => nil %>	
+                                            <script type="text/javascript">
+                                              function regexName()
+                                              {
+                                                  var name = $.trim($("#name").val());
+                                                  if(name.length == 0)
+                                                  {
+                                                      $("#project_name_span").text("<%= l(:label_search_conditions_not_null) %>");
+                                                      $("#project_name_span").css('color','#ff0000');
+                                                      $("#project_name_span").focus();
+                                                      return false;
+                                                  }
+                                                  else
+                                                  {
+                                                      $("#project_name_span").text("");
+                                                      return true;
+                                                  }
+                                              }
+
+                                              function submitSerch()
+                                              {
+                                                  if(regexName()){$("#project_search_form").submit();}
+                                              }
+                                            </script>
+											<%= form_tag(projects_search_path, :method => :get, :id => "project_search_form") do %>
+                                                <%= text_field_tag 'name', params[:name], :size => 20, :onkeyup => "regexName();" %>
+                                                <%= hidden_field_tag 'project_type', params[:project_type] %>
+                                                <%#= submit_tag l(:label_search), :class => "enterprise", :name => nil %>
+                                                <a href="#" onclick="submitSerch();" class="ButtonColor m3p10" style="padding-top: 7px !important;">
+                                                    <%= l(:label_search)%>
+                                                </a>
+                                                <br />
+                                                <span id="project_name_span"></span>
 											<% end %>
 										</div>
 									</td>