From http://www.w3schools.com (Copyright Refsnes Data)

WMLScript toString() Function

WMLScript String Library Complete WMLScript String Library

The toString() function converts a value to a string.

Syntax

n = String.toString(value)

Part Description
n The string returned from the function
value Any value

Example

var a = String.toString(66);
var b = String.toString(world);

Result

a = "66"
b = "world"

WMLScript String Library Complete WMLScript String Library

From http://www.w3schools.com (Copyright Refsnes Data)