To access platform services from an SVG/HTML/JS portal page, you need to use the KreaTV extensions to Javascript: TOI/JS.
Access is provided via the use of a special global "toi" object. This acts as the primary access point to the TOI Interface. Each platform service is registered as it's own property in the toi object. Examples include toi.mediaService and toi.informationService.
This interface is available starting from version 4.0 of the KreaTV IP-STB software.
New functionality will be added and error corrections made (if necessary) to this interface in the future.
This is an open interface, meaning that other set-top box vendors may implement it.
Please see the TOI/JS interface 2 Overview page for more information.