From http://www.w3schools.com (Copyright Refsnes Data)
The WMLBrowser library contains functions that can be used to access browser variables.
| Function | Description |
| getCurrentCard() | Returns the (relative) URL of the current card |
| getVar() | Returns the value of a variable |
| go() | Goes to a new card |
| newContext() | Clears all variables |
| prev() | Goes to the previous card |
| refresh() | Refreshes the current card |
| setvar() | Sets the value of a variable |
Note: The WML specification states that calls to library functions that are not supported by the browser should return invalid. Because of this, all the above functions should be tested against their return value, and proper action should be taken in case a function returns invalid.
From http://www.w3schools.com (Copyright Refsnes Data)