Solved: Substitute Workbook Source Name?

[YellowLabPro]

I wanted to swithc the way I capture the workbook source name from an input box entry to the active workbook. But this line returns error 438
Object doesn't support this propery of method.
Is this a valid method to capture workbook name and if so what is incorrect here?

[VBA]
'WbsName = Application.Inputbox("Enter PO File Name")
WbsName = Application.ActiveWorkbook
[/VBA]

thanks,

Doug