function(aUndoStack) {
			while (aUndoStack.length) {
				var oOperation = aUndoStack.pop();
				this[oOperation.name].apply(this, oOperation.properties);
			}
		}
function(aUndoStack) {
			while (aUndoStack.length) {
				var oOperation = aUndoStack.pop();
				this[oOperation.name].apply(this, oOperation.properties);
			}
		}
function ( aUndoStack ) { while ( aUndoStack . length ) { var oOperation = aUndoStack . pop ( ) ; this [ oOperation . name ] . apply ( this , oOperation . properties ) ; } }
Execute all recorded undo operations from stack
@param  {Array} aUndoStack stack of recorded undo operations
Execute all recorded undo operations from stack
Undo the last undo operation in the stack