Dates Help

Through the use of a form i am getting users to enter a specific date (mm/dd/yyyy) and a number of days

I want to basically get this number of days and add it to the date to calculate the end date

eg. user enters 01/31/2003 and the number 4, and I want an asp page to calculate as an output: 02/03/2003

I am aware of a function in asp which for example: <% Date + 4 %>

But how do I put my own date into this method, and make the ASP code realise it is a date

W3Schools has a good page on DateAdd: http://www.w3schools.com/vbscript/func_dateadd.asp

Blair