angular.module('directives').directive('yourDirective', [function() {
    return {
        templateUrl: function($element, $attrs) {
            // Default template path.
            var templateUrl = 'partials/default.html';

            // Check if a template url attribute has been passed in to the
            // directive. If one has been provided then make use of this
            // rather than the default.
            if ($attrs.templateUrl !== undefined) {
                templateUrl = $attrs.templateUrl;
            }

            return templateUrl;
        }
    };
}]);

// Example usage: <div data-your-directive data-template-url="'partials/other.html'"></div>