diff --git a/t3lib/js/extjs/tree/tree.js b/t3lib/js/extjs/tree/tree.js
index 95ff4b2..6da3d24 100644
--- a/t3lib/js/extjs/tree/tree.js
+++ b/t3lib/js/extjs/tree/tree.js
@@ -223,14 +223,59 @@ TYPO3.Components.Tree.TcaCheckChangeHandler = function(checkedNode, checked) {
 		checkedNode.getUI().removeClass('complete');
 	}
 	var selected = [];
+	
+	// if node has been checked -> check all parents in cascade
+	if (checked) {
+		TYPO3.Components.Tree.checkCascade(checkedNode);
+	}
+	// if node has been un-checked -> un-check all children in cascade
+	else {
+		TYPO3.Components.Tree.uncheckCascade(checkedNode);
+	}
+	
 	this.root.cascade(function(node) {
 		if (node.ui.isChecked()) {
 			selected.push(node.attributes.uid);
 		}
 	});
+	
 	this.countSelectedNodes = selected.length;
 	Ext.fly('treeinput' + this.id).dom.value = selected.join(',');
 	eval(this.onChange);
 
 	this.resumeEvents();
 };
+
+/**
+ * Select node in cascade
+ * 
+ * @param {Object} Ext.tree.TreeNode
+ */
+TYPO3.Components.Tree.checkCascade = function(node) {
+	
+	if (node.isRoot != true) {
+		node.parentNode.ui.toggleCheck(true);
+		
+		// Recursive call until the tree is traversed.
+		TYPO3.Components.Tree.checkCascade(node.parentNode);
+	}
+}
+
+/**
+ * Disselect node in cascade when 
+ * 
+ * @param {Object} Ext.tree.TreeNode
+ */
+TYPO3.Components.Tree.uncheckCascade = function(node) {
+	
+	node.cascade(function(childNode) {
+		if (childNode != node) {
+			childNode.ui.toggleCheck(false);
+			
+			if (childNode.childNodes.length > 0) {
+				// Recursive call until the tree is traversed.
+				TYPO3.Components.Tree.uncheckCascade(childNode);
+			}
+		}
+	});
+}
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