function getLeftItemsWithVisibilityTrue() {
			var aItems = [];
			this.getItems().forEach(function (item) {
				if (item instanceof sap.ui.commons.ToolbarSeparator || item.getVisible()) {
					aItems.push(item);
				}
			});
			return aItems;
		}
*************************************************************
		//  Private functions
		//****************************************************************
		/**
Returns all items with API property visibility = true, including toolbar separator(s)
@returns {Array} all items with API property visibility = true, including toolbar separator(s)
@private