fix popup positioning

Author: masciugo

build/js/tempusdominus-bootstrap-3.js

@@ -1886,15 +1886,15 @@ var TempusDominusBootstrap3 = function ($) {
                 self.widget.removeClass('pull-right');
             }
 
-            // find the first parent element that has a static css positioning
-            if (parent.css('position') !== 'static') {
+            // find the first parent element that has a relative css positioning
+            if (parent.css('position') !== 'relative') {
                 parent = parent.parents().filter(function () {
-                    return $(this).css('position') === 'static';
+                    return $(this).css('position') === 'relative';
                 }).first();
             }
 
             if (parent.length === 0) {
-                throw new Error('datetimepicker component should be placed within a static positioned container');
+                throw new Error('datetimepicker component should be placed within a relative positioned container');
             }
 
             self.widget.css({