fnHasTabIndex = function(oElem) {

		var iTabIndex = jQuery.prop(oElem, "tabIndex");

		// compensate for 'specialties' in the implementation of jQuery.prop:
		// - it returns undefined for text, comment and attribute nodes
		// - when calculating an implicit tabindex for focusable/clickable elements, it ignores the 'disabled' attribute
		return iTabIndex != null && iTabIndex >= 0 &&
			( !jQuery.attr(oElem, "disabled") || jQuery.attr(oElem, "tabindex") );

	}
Returns <code>true</code> if the first element has a set tabindex.

@return {boolean} If the first element has a set tabindex
@public
@name jQuery#hasTabIndex
@author SAP SE
@since 0.9.0
@function
@requires module:sap/ui/dom/jquery/hasTabIndex