Payroll button menu item

I am working on a modification in the Payroll Journal that will allow the user to enter an amount to be included in the journal as a bonus. Click on the Payroll button and I have a menu item "Enter Bonus Amount. I need a window that says Enter amount _____. I know I can use MESSAGE to get a window that says enter amount, but how do I get the text box, that will accept user input?

Window.OPEN('Please specify an amount: #1########',Amount); Window.INPUT; Window.CLOSE;Window is a variable of type Dialog and Amount is of type Decimal.

Thanks for all the help, Nelson. Works exactly as I had hoped…