function makeSPARQLQuery( endpointUrl, sparqlQuery, doneCallback ) {
	var settings = {
		headers: { Accept: 'application/sparql-results+json' },
		data: { query: sparqlQuery }
	};
	return $.ajax( endpointUrl, settings ).then( doneCallback );
}

var endpointUrl = '',
	sparqlQuery = "";

makeSPARQLQuery( endpointUrl, sparqlQuery, function( data ) {
		$( 'body' ).append( $( '<pre>' ).text( JSON.stringify( data ) ) );
		console.log( data );
	}
);