rem: return true; 
add: return true; 
context: 	undo: function() {		if(!this.canUndo) { return false; }		this.endAllTransactions();		this.isUndoing = true;		var top = this._undoStack.pop();		if(top instanceof dojo.undo.Manager){			top.undoAll();		}else{			top.undo();		}		if(top.redo){			this._redoStack.push(top);		}		this.isUndoing = false;		this._updateStatus();		this.onUndo(this, top);		if(!(top instanceof dojo.undo.Manager)) {			this.getTop().onUndoAny(this, top);		}		return true;	},
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/Manager.js/clean/www/resources/dojo-ajax/src/undo/Manager.js