/* GETVALandSETVAL.js - a JScript
A simple script to Get the value of a Tag.
add one to it.
Set the value of the tag to the new value.*/
/* The type of the expressions determines the behavior
of the + operator in JScript.
If Both expressions are numeric or Boolean Then Addition.
If Both expressions are strings Then Concatenate
If One expression is numeric and the other is a string Then Concatenate
GETVAL returns even numbers as a STRING.
I used multiplication to force evaluation as of the GETVAL as
a number and hence use addition and not concatenation
value1 = GETVAL("SPEED") * 1.0 + 1;
SETVAL("SPEED=" + value1);