A recursive version of csi.js [https://github.com/LexmarkWeb/csi.js] using jQuery. Allows nested templates!

jquery.csi.js

jQuery.csi = function csi( context ){
	$( '[data-include]', context || document ).each( function fetchPartial(){
		var $placeholder = $( this );
		var location     = $placeholder.attr( 'data-include' );

		$.ajax( { url : location, async : false } ).done( function injectPartial( response ){
			var $partial = $( response );

			csi( $partial );

			$placeholder.replaceWith( $partial );
		} );
	} );
};

$( jQuery.csi )