fix(interface): Do not sort last line

Do not sort last line as it’s just a filling empty line.
Also only add sorting when headers are used as we need to click on them
 for sorting.

issue #5708

html/include/tsorter.js

@@ -79,7 +79,7 @@ var tsorter = (function()
                 if( that.prevCol !== -1 && that.ths[that.prevCol].className !== 'exc_cell'){
                     that.ths[that.prevCol].className = '';
                 }
-                that.quicksort(0, that.trs.length);
+                that.quicksort(0, that.trs.length - 1);
             }
             that.prevCol = that.column;
         },
@@ -152,7 +152,7 @@ var tsorter = (function()
             var that = this,
                 i;
 
-            for( i = 1; i < that.trs.length; i++ ) {
+            for( i = 1; i < (that.trs.length - 1); i++ ) {
                 that.tbody.insertBefore( that.trs[i], that.trs[0] );
             }
         },

include/class_divSelectBox.inc

@@ -105,10 +105,12 @@ class divSelectBox
                   ">\n";
     $s_return .= $this->_generatePage();
     $s_return .= '</table></div></div>';
-    $s_return .=
+    if ($this->headers !== FALSE) {
+      $s_return .=
         '<script type="text/javascript">
           var sorter'.$this->id.' = tsorter.create(\''.$this->id.'\');
         </script>';
+    }
     return $s_return;
   }