Help!: Parse error: syntax error, unexpected ':'

I am using the Switch theme and had read that the only way to slow down the homepage sliders was to edit the PHP code. I copy/pasted the original code into a Word document, and started experimenting in the editor. I couldn’t get anything to work so I decided to just restore the original code and move on, but then I couldn’t get the original code to work! I get the following error message:

Parse error: syntax error, unexpected ‘:’ in /home/alosaadmin/alosafoundation.dreamhosters.com/wp-content/themes/switch/includes/theme-scripts.php on line 37

I’ve been over it a bunch of times and cannot for the life of me figure out what is the problem. I’ve pasted in the code for this below. Any help would be MUCH appreciated! Thank you!!

<?php

/*---------------------*/
/* Enqueue JavaScript / CSS for the front-end
/*---------------------*/

function switch_enqueue_scripts() {

	if (is_admin()) return;

	wp_enqueue_script('jquery');
	wp_enqueue_script('mediaqueries-js', SCRIPTS_URL . '/mediaqueries.js');
	wp_enqueue_script('jqueryui-js', SCRIPTS_URL . '/jquery.ui.js', 'jquery', false, true);
	wp_enqueue_script('superfish-js', SCRIPTS_URL . '/jquery.superfish.js', 'jquery', '1.4.8', true);
	wp_enqueue_script('supersubs-js', SCRIPTS_URL . '/jquery.supersubs.js', 'jquery', '0.2', true);
	wp_enqueue_script('flexslider-js', SCRIPTS_URL . '/jquery.flexslider.js', 'jquery', '1.8', true);
	wp_enqueue_script('roundabout-js', SCRIPTS_URL . '/jquery.roundabout.js', 'jquery', '2.4', true);
	wp_enqueue_script('caroufredsel-js', SCRIPTS_URL . '/jquery.caroufredsel.js', 'jquery', '5.5.5', true);
	wp_enqueue_script('fancybox-js', SCRIPTS_URL . '/jquery.fancybox.js', 'jquery', '1.3.4', true);
	wp_enqueue_script('imagesloaded-js', SCRIPTS_URL . '/jquery.imagesloaded.js', 'jquery', '2.0.1', true);
	wp_enqueue_script('isotope-js', SCRIPTS_URL . '/jquery.isotope.js', 'jquery', '1.5.18', true);
	wp_enqueue_script('fitvids-js', SCRIPTS_URL . '/jquery.fitvids.js', 'jquery', '1.0', true);
	wp_enqueue_script('tiptip-js', SCRIPTS_URL . '/jquery.tiptip.js', 'jquery', '1.3', true);
	wp_enqueue_script('theme-js', SCRIPTS_URL . '/theme.js', 'jquery', '1.0', true);

}

add_action('wp_enqueue_scripts', 'switch_enqueue_scripts');

/*----------------------------*/
/* Enqueue JavaScript / CSS for the admin
/*-----------------------------*/

function switch_admin_scripts() {

	wp_enqueue_script('jquery');

	wp_enqueue_script('widgets-js', INCLUDES_URL . '/widgets/widgets.js', 'jquery', '1.0', true);
	wp_enqueue_style('widgets-css', INCLUDES_URL .'/widgets/widgets.css');

}

add_action('admin_enqueue_scripts', 'switch_admin_scripts');

?>