Checking Bit of a Byte using another variable

[financecatalyst]

If I have two byte variables Check and Days.
If Days only range from 1 to 7, can we check bits in Check based on Days?

For example, lets say if Days=5, I am having trouble with the following method:

if Check[Days]=1 then goto whatever

In the above example I want to check bit 5 of Check variable.

Is there any other method to do the above task?