function _setTextPrivateButton(iButton, sText) {
		this["_textButton" + iButton] = sText;

		if (this.isActive() && this["_getVisibleButton" + iButton]()) {
			if (this.$("B" + iButton + "-Text").get(0)) {
				this.$("B" + iButton + "-Text").text(sText);
			} else {
				this.$("B" + iButton).text(sText);
			}
		}
	}
Gets the aria-label of the private fourth button
@returns {string}
@private