Microsoft® JScript™ ^ Operator 
Language Reference Version 1

Used to perform a bitwise exclusive OR on two expressions.
result = expression1 ^ expression2The ^ operator syntax has these parts:
Part Description result Any variable. expression1 Any expression. expression2 Any expression.
The ^ operator looks at the binary representation of the values of two expressions and does a bitwise exclusive OR operation on them. The result of this operation behaves as follows:
0101 (expression1) 1100 (expression2)  1001 (result)When one, and only one, of the expressions has a 1 in a digit, the result has a 1 in that digit. Otherwise, the result has a 0 in that digit.
For information on when a runtime error is generated by the ^ operator, see the Operator Behavior table.