Can be purchased on codecanyon only:
https://codecanyon.net/item/real-estate-weather-widget/16966690
Can be purchased on codecanyon only:
https://codecanyon.net/item/real-estate-weather-widget/16966690
<?php _widget('custom_javascript');?>
Example can be found in property.php template file
Some guide is also available here:
http://geniuscript.com/wbooking/user_guide_theme/#!/add_pages