function execute() {
			window.requestAnimationFrame(fnFunction); // requestAnimationFrame required for performance, but mainly to be in sync with the table, because the table also calls requestAnimationFrame before resizing itself in its listener to the ResizeHandler
			IntervalTrigger.removeListener(execute);
		}
Setter for the private "_columnSpan" property
@param {string} sValue
@returns {object} this
@restricted