addressing @josenavas gui comment

Author: antgonza

qiita_pet/templates/study_description.html

@@ -184,7 +184,8 @@
   form.submit();
 }
 
-function delete_sample_template(sample_template_id) {
+function delete_sample_template() {
+  sample_template_id = {{study.sample_template}};
   if (confirm('Are you sure you want to delete sample template ID: ' + sample_template_id + '?')) {
     var form = $("<form>")
     .attr("action", window.location.href)
@@ -556,10 +557,7 @@ <h2><i>{{study_alias}}</i></h2>
 <!-- Nav tabs -->
 <ul class="nav nav-tabs" role="tablist" id="myTab">
     <li class="active">
-      <a href="#study_information_tab" role="tab" data-toggle="tab">
-        Study information
-        <button class="close" title="Remove this sample template" type="button" onclick="delete_sample_template({{study.sample_template}})">&nbsp; ×</button>
-      </a>
+      <a href="#study_information_tab" role="tab" data-toggle="tab">Study information</a>
     </li>
   {% if show_data_tabs %}
     <li><a href="#raw_data_tab" role="tab" data-toggle="tab">Raw data</a></li>

qiita_pet/templates/study_description_templates/study_information_tab.html

@@ -57,6 +57,10 @@
       <td>
         <a class="btn btn-primary" onclick="extend_sample_template();">Add samples to study</a>
       </td>
+      <td>&nbsp; &nbsp;</td>
+      <td>
+        <a class="btn btn-danger glyphicon glyphicon-trash" onclick="delete_sample_template();"></a>
+      </td>
       {% end %}
   </table>
 </div>