To access parameters passed to a VHTML file, surround the parameter name with the '$' character. BrainHoney replaces these referenced parameters with their values. For example, if a custom VHTML file was expecting a query parameter named 'MyId' to display dynamic content, everywhere the text '$MyId$' is found in the VHTML file will be replaced with the value of the query parameter.
Each VHTML file has access to its standard ID parameter, which you reference from your VHTML file as $ID$. Many Frame API calls, such as setComponentState require this ID parameter.