function renderTabIndex(oButton, oRm){
		if (oButton._bExcludeFromTabChain) {
			oRm.attr("tabindex", -1);
		}
	}
/**
	 * Renders tabindex with value of "-1" if required by  <code>_bExcludeFromTabChain</code> property.
	 * @param {sap.m.Button} oButton The sap.m.Button to be rendered
	 * @param {sap.ui.core.RenderManager} oRm The RenderManager that can be used for writing to the Render-Output-Buffer
	 */
Renders tabindex with value of "-1" if required by  _bExcludeFromTabChain property.
@param {sap.m.Button} oButton The sap.m.Button to be rendered
@param {sap.ui.core.RenderManager} oRm The RenderManager that can be used for writing to the Render-Output-Buffer
Renders tabindex with value of " - 1 " if required by _bExcludeFromTabChain property . @param { sap . m . Button } oButton The sap . m . Button to be rendered @param { sap . ui . core . RenderManager } oRm The RenderManager that can be used for writing to the Render - Output - Buffer
function renderTabIndex(oButton, oRm){
		if (oButton._bExcludeFromTabChain) {
			oRm.attr("tabindex", -1);
		}
	}
function renderTabIndex ( oButton , oRm ) { if ( oButton . _bExcludeFromTabChain ) { oRm . attr ( "tabindex" , - 1 ) ; } }
Renders tabindex with value of "-1" if required by  <code>_bExcludeFromTabChain</code> property.
Renders tabindex with value of " - 1 " if required by <code > _bExcludeFromTabChain< / code > property .