Index: app/views/queries/_columns.html.erb
===================================================================
--- app/views/queries/_columns.html.erb	(révision 3176)
+++ app/views/queries/_columns.html.erb	(copie de travail)
@@ -23,8 +23,10 @@
               :ondblclick => "moveOptions(this.form.selected_columns, this.form.available_columns);" %>
     </td>
     <td class="buttons">
+      <input type="button" value="&#8648;" onclick="moveOptionTop(this.form.selected_columns);" /><br />
       <input type="button" value="&#8593;" onclick="moveOptionUp(this.form.selected_columns);" /><br />
-      <input type="button" value="&#8595;" onclick="moveOptionDown(this.form.selected_columns);" />
+      <input type="button" value="&#8595;" onclick="moveOptionDown(this.form.selected_columns);" /><br />
+      <input type="button" value="&#8650;" onclick="moveOptionBottom(this.form.selected_columns);" />
     </td>
   </tr>
 </table>
Index: public/javascripts/select_list_move.js
===================================================================
--- public/javascripts/select_list_move.js	(révision 3176)
+++ public/javascripts/select_list_move.js	(copie de travail)
@@ -64,6 +64,17 @@
   }
 }
 
+function moveOptionTop(theSel) {
+  var index = theSel.selectedIndex;
+
+  if (index > 0) {
+    for (i=index; i>0; i--) {
+      swapOptions(theSel, i-1, i);
+    }
+    theSel.selectedIndex = 0;
+  }
+}
+
 function moveOptionDown(theSel) {
   var index = theSel.selectedIndex;
   if (index < theSel.length - 1) {
@@ -72,6 +83,18 @@
   }
 }
 
+function moveOptionBottom(theSel) {
+  var index = theSel.selectedIndex;
+  var indexTop = theSel.length - 1;
+  if (index < theSel.length - 1) {
+    for (i=index; i<indexTop; i++) {
+      swapOptions(theSel, i+1, i);
+    }
+    theSel.selectedIndex = indexTop;
+  }
+}
+
 // OK
 function selectAllOptions(id)
 {