Macro that sends email automatically once a week?

Ok so I created a macro using code that I found online to convert a spreadsheet into a PDF and send it to an email address.

Now, I was wondering if anybody knew a way that I could program this macro to automatically do this once a week at a specific time without user interface?

Here is my function for creating a PDF:

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Sending Email:

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And here is the sub that calls the functions:

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Do any of these help?

http://www.cpearson.com/excel/OnTime.aspx

http://www.globaliconnect.com/excel/...=79&Itemid=475