Add a javascript file to a plugin HELP!

Hi,

I’m trying to add a Jquery javascript file to my plugin however after reading the documentation and trying various examples online I’m still not having any success. Could someone please point me in the right direction. Below is my php file:

class WordPressWidget extends WP_Widget {
          function WordPressWidget() {
                    $widget_ops = array(
                    'classname' => 'WordPressWidget',
                    'description' => 'new wordpress widget/plugin'
          ); 

          $this->WP_Widget(
                    'WordPressWidget',
                    'WordPress Widget,
                    $widget_ops
          );
}

          function widget($args, $instance) { // widget sidebar output
                    extract($args, EXTR_SKIP);
                    echo $before_widget; // pre-widget code from theme
					print ('<h2 class="blocktitle">WordPress Widget</h2> ');
					print ('<input type="text" id="txtText" />   <input id="btnButton" type="button" disabled="disabled" value="submit form" />');
                    echo $after_widget; // post-widget code from theme
          }

		  	  function load_scripts()  {
			// Register the script like this for a plugin:
			wp_register_script( 'custom-script', FRM_URL . ( '/js/my-utils.js' ), array( 'jquery' ) );
			// or
			// Register the script like this for a theme:
			//wp_register_script( 'custom-script', '/js/my-utils.js', array( 'jquery' )  );  

			// For either a plugin or a theme, you can then enqueue the script:
			wp_enqueue_script( 'custom-script' );
		  }

}

add_action( 'wp_enqueue_scripts', 'load_scripts' );
add_action( 'widgets_init', create_function('','return register_widget("WordPressWidget");')

);

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