diff --git a/phpgwapi/inc/class.egw_grid_columns.inc.php b/phpgwapi/inc/class.egw_grid_columns.inc.php
index c3a51da9e9..9a1f0345db 100644
--- a/phpgwapi/inc/class.egw_grid_columns.inc.php
+++ b/phpgwapi/inc/class.egw_grid_columns.inc.php
@@ -174,6 +174,7 @@ define("EGW_COL_SORTABLE_NONE", 0);
 define("EGW_COL_SORTABLE_ALPHABETIC", 1);
 define("EGW_COL_SORTABLE_NUMERICAL", 2);
 define("EGW_COL_SORTABLE_NATURAL", 3);
+define("EGW_COL_SORTABLE_EXTERNAL", 4);
 
 define("EGW_COL_SORTMODE_NONE", 0);
 define("EGW_COL_SORTMODE_ASC", 1);
@@ -198,7 +199,7 @@ class egw_grid_column extends egw_json_object
 			"sortable" => array("types" => "int", "default" => EGW_COL_SORTABLE_NONE),
 			"sortmode" => array("types" => "int", "default" => EGW_COL_SORTMODE_NONE),
 			"default" => array("types" => "string,int", "default" => EGW_COL_DEFAULT_FETCH),
-			"type" => array("types" => "int", "default" => EGW_COL_TYPE_DEFAULT),
+			"type" => array("types" => "int", "default" => EGW_COL_TYPE_DEFAULT)
 		));
 
 		// Set the column id
diff --git a/phpgwapi/js/egw_action/egw_action_dragdrop.js b/phpgwapi/js/egw_action/egw_action_dragdrop.js
index ee2c2d931a..52c839d4d2 100644
--- a/phpgwapi/js/egw_action/egw_action_dragdrop.js
+++ b/phpgwapi/js/egw_action/egw_action_dragdrop.js
@@ -32,12 +32,6 @@ _egwActionClasses["drop"] = {
 	"implementation": getDropImplementation
 }
 
-function _getTopBody()
-{
-	return $("body", window.top);
-}
-
-
 /**
  * The egwDragAction class overwrites the egwAction class and adds the new
  * "dragType" propery. The "onExecute" event of the drag action will be called
@@ -117,7 +111,7 @@ function egwDragActionImplementation()
 							// fixes a bug in IE: If the element isn't inserted into
 							// the DOM-tree jquery appends it to the parent node.
 							// In case this is a table it doesn't work correctly
-							_getTopBody().append(ai.helper);
+							$("body").append(ai.helper);
 							return ai.helper;
 						}
 
diff --git a/phpgwapi/js/egw_action/egw_grid.js b/phpgwapi/js/egw_action/egw_grid.js
index 4b83733b3b..87b42cc42a 100644
--- a/phpgwapi/js/egw_action/egw_grid.js
+++ b/phpgwapi/js/egw_action/egw_grid.js
@@ -35,14 +35,25 @@ function egwGrid(_parentNode, _columns, _objectManager, _fetchCallback, _columnC
 	// Create the read queue
 	this.readQueue = new egwGridDataQueue(_fetchCallback, _context);
 
+	this.selectedChangeCallback = null;
+
 	// Create the root data element
 	this.dataRoot = new egwGridDataElement("", null, this.columns, this.readQueue, 
 		_objectManager);
 	var self = this;
 	this.dataRoot.actionObject.setSelectedCallback = function() {
-		if (self.gridOuter.checkbox)
+		if (self.gridOuter.checkbox || self.selectedChangeCallback)
 		{
-			self.gridOuter.checkbox.attr("checked", this.getAllSelected())
+			var allSelected = this.getAllSelected();
+			if (self.gridOuter.checkbox)
+			{
+				self.gridOuter.checkbox.attr("checked", allSelected)
+			}
+
+			if (self.selectedChangeCallback)
+			{
+				self.selectedChangeCallback.call(self.context, allSelected)
+			}
 		}
 	};
 
diff --git a/phpgwapi/js/egw_action/egw_grid_columns.js b/phpgwapi/js/egw_action/egw_grid_columns.js
index 78319ba2ad..3d9d788af1 100644
--- a/phpgwapi/js/egw_action/egw_grid_columns.js
+++ b/phpgwapi/js/egw_action/egw_grid_columns.js
@@ -33,6 +33,8 @@ var EGW_COL_SORTABLE_NONE = 0;
 var EGW_COL_SORTABLE_ALPHABETIC = 1;
 var EGW_COL_SORTABLE_NUMERICAL = 2;
 var EGW_COL_SORTABLE_NATURAL = 3;
+var EGW_COL_SORTABLE_EXTERNAL = 4;
+
 
 var EGW_COL_SORTMODE_NONE = 0;
 var EGW_COL_SORTMODE_ASC = 1;
@@ -204,7 +206,7 @@ egwGridColumn.prototype.set_sortable = function(_value)
 {
 	if (typeof _value == "number" && (_value == EGW_COL_SORTABLE_ALPHABETIC ||
 	    _value == EGW_COL_SORTABLE_NONE || _value == EGW_COL_SORTABLE_NATURAL ||
-	    _value == EGW_COL_SORTABLE_NUMERICAL))
+	    _value == EGW_COL_SORTABLE_NUMERICAL || _value == EGW_COL_SORTABLE_EXTERNAL))
 	{
 		if (_value == EGW_COL_SORTABLE_NONE)
 		{
diff --git a/phpgwapi/js/egw_action/egw_grid_view.js b/phpgwapi/js/egw_action/egw_grid_view.js
index 7248477a32..d49cc7d229 100644
--- a/phpgwapi/js/egw_action/egw_grid_view.js
+++ b/phpgwapi/js/egw_action/egw_grid_view.js
@@ -291,6 +291,31 @@ egwGridViewOuter.prototype.buildBase = function()
 	this.outer_thead.append(this.outer_head_tr);
 }
 
+egwGridViewOuter.prototype.updateColSortmode = function(_colIdx, _sortArrow)
+{
+	if (typeof _sortArrow == "undefined")
+	{
+		_sortArrow = $("span.sort", this.headerColumns[_colIdx]);
+	}
+
+	var col = this.columns[_colIdx];
+	if (_sortArrow)
+	{
+		_sortArrow.removeClass("asc");
+		_sortArrow.removeClass("desc");
+
+		switch (col.sortmode)
+		{
+			case EGW_COL_SORTMODE_ASC:
+				_sortArrow.addClass("asc");
+				break;
+			case EGW_COL_SORTMODE_DESC:
+				_sortArrow.addClass("desc");
+				break;
+		}
+	}
+}
+
 egwGridViewOuter.prototype.buildBaseHeader = function()
 {
 	// Build the "option-column", if this hasn't been done yet
@@ -306,6 +331,7 @@ egwGridViewOuter.prototype.buildBaseHeader = function()
 			// Create the column element and insert it into the DOM-Tree
 			var column = $(document.createElement("th"));
 			column.addClass(col.tdClass);
+			this.headerColumns.push(column);
 
 			var cont = $(document.createElement("div"));
 			cont.addClass("innerContainer");
@@ -325,15 +351,23 @@ egwGridViewOuter.prototype.buildBaseHeader = function()
 
 				cont.append(this.checkbox);
 			}
-			else
+
+			var caption = $(document.createElement("span"));
+			caption.html(col.caption);
+
+			cont.append(caption);
+
+			if (col.type != EGW_COL_TYPE_CHECKBOX && col.sortable != EGW_COL_SORTABLE_NONE)
 			{
-				cont.html(col.caption);
+				var sortArrow = $(document.createElement("span"));
+				sortArrow.addClass("sort");
+				cont.append(sortArrow);
+
+				this.updateColSortmode(i, sortArrow);
 			}
 
 			column.append(cont);
 			this.outer_head_tr.append(column);
-
-			this.headerColumns.push(column);
 		}
 
 		// Build the "select columns" icon
diff --git a/phpgwapi/js/egw_action/test/grid.css b/phpgwapi/js/egw_action/test/grid.css
index 8540ebdc16..a3ef7a54b7 100644
--- a/phpgwapi/js/egw_action/test/grid.css
+++ b/phpgwapi/js/egw_action/test/grid.css
@@ -209,4 +209,21 @@ body, td, th {
 	border-bottom: 0 none silver !important;
 }
 
+.egwGridView_outer span.sort {
+	display: inline-block;
+	width: 7px;
+	height: 7px;
+	background-repeat: no-repeat;
+	background-position: center;
+	margin: 2px;
+	vertical-align: middle;
+}
+
+.egwGridView_outer span.sort.asc {
+	background-image: url(imgs/up.png);
+}
+
+.egwGridView_outer span.sort.desc {
+	background-image: url(imgs/down.png);
+}
 
diff --git a/phpgwapi/js/egw_action/test/test_grid_view.html b/phpgwapi/js/egw_action/test/test_grid_view.html
index 51225da8ff..866abb0b91 100644
--- a/phpgwapi/js/egw_action/test/test_grid_view.html
+++ b/phpgwapi/js/egw_action/test/test_grid_view.html
@@ -42,7 +42,9 @@
 						"id": "name",
 						"caption": "Name",
 						"width": "75%",
-						"type": EGW_COL_TYPE_NAME_ICON_FIXED
+						"type": EGW_COL_TYPE_NAME_ICON_FIXED,
+						"sortable": EGW_COL_SORTABLE_EXTERNAL,
+						"sortmode": EGW_COL_SORTMODE_ASC
 					},
 					{
 						"id": "size",