Microsoft® JScript®
var Statement
 Language Reference 
Version 1 

See Also

Declares a variable.
var variable [ = value ] [, variable2 [ = value2], ...]

The var statement syntax has the following parts:

Part Description
variable, variable2 The names of the variables being declared.
value, value2 The initial value assigned to the variable.

Use the var statement to declare variables. These variables can be assigned values at declaration or later in your script. Examples of declaration follow:
var index;
var name = "Thomas Jefferson";
var answer = 42, counter, numpages = 10;