Substitution Variables

Substitution variable are used to transfer values from the request URL to FXG templates stored on the server.

$ *var*= *value*

var	Variable name.
value	Value to which the variable is to be set (string).

Variable definitions and references may occur in the query portion of the request URL.
Variables are defined as above, similar to other IS commands; the leading ‘$’ identifies the command as a variable definition.
The variable name *var* is case-sensitive and may consist of any combination of letters, numbers, ‘-’, and ‘_’.
Important value must be single-pass URL-encoded for safe HTTP transmission.