function getTabStripItemAccAttributes(oItem, oTabStrip, oSelectedItem) {

		var aItems = oTabStrip.getItems(),
			iIndex = aItems.indexOf(oItem),
			oTabStripParent = oTabStrip.getParent(),
			mAccAttributes = { role: "tab"},
			sDescribedBy = InvisibleText.getStaticId("sap.m", "TABSTRIP_ITEM_CLOSABLE") + " ";

		sDescribedBy += InvisibleText.getStaticId("sap.m", oItem.getModified() ? "TABSTRIP_ITEM_MODIFIED" : "TABSTRIP_ITEM_NOT_MODIFIED");
		mAccAttributes["describedby"] = sDescribedBy;
		mAccAttributes["posinset"] = iIndex + 1;
		mAccAttributes["setsize"] = aItems.length;

		if (oTabStripParent && oTabStripParent.getRenderer && oTabStripParent.getRenderer().getContentDomId) {
			mAccAttributes["controls"] = oTabStripParent.getRenderer().getContentDomId(oTabStripParent);
		}
		if (oSelectedItem && oSelectedItem.getId() === oItem.getId()) {
			mAccAttributes["selected"] = "true";
		} else {
			mAccAttributes["selected"] = "false";
		}
		return mAccAttributes;
	}
Returns the accessibility attributes for a given <code>TabStripItem</code>.

@param {sap.m.TabStripItem} oItem The <code>TabStripItem</code> to prepare accessibility attributes for
@param {sap.m.TabStrip} oTabStrip The <code>TabStrip</code> parent control
@param {sap.m.TabStripItem} oSelectedItem The <code>TabStripItem</code> that is currently selected
@returns {Object} The accessibility attributes for given <code>TabStripItem</code>
@private