help with excel

I'm using VBA in excel and I ran into a problem
I have the name of a worksheet in a variable and what I want to do is activate that worksheet using the variable.
Does anyone have any ideas?

sheetname = "Sheet3"
Sheets(sheetname).Select

just tried this...should work fine

Code:

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Private Sub CommandButton1_Click()
x = "Sheet2"
Sheets(x).Select
End Sub

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Thanks. it works!