Email submit button with mailDoc not working on Macs using Outlook or PC's running 64 bit Win 7 and 64 bit Office

I have been using the event.target.mailDoc javascript (see below) for 4 years in a submit sutton and it's not working on 64 bit PC's running 64 bit Win 7 64 bit Office. It never has worked on macs either. I tried using event.target.submitForm and it doesn't work on macs either. Does anyone else have a different solution to replace mailDoc for something else that works on 64 bit platform and macs?
 
event.target.mailDoc({bUI:false, cTo:EmailList.rawValue, cCc:AuthMoCodeSignatoryEmail.rawValue, cSubject:"Adobe software request submitted to the Division of Information Technology", cMsg:""+FirstName.rawValue+" "+LastName.rawValue+" submitted an order to request Adobe software from the Division of Information Technology for "+Department.rawValue+" using the MoCode:"+MoCode.rawValue+" . Please open the attached adobe.PDF file and review the request by downloading the latest version of Acrobat Reader at http://www.adobe.com/products/acrobat/readstep2.php . Mac users: Please save the attached PDF file to your desktop and open it in Acrobat. If you did not approve this request or if you think the order is not accurate, please notify the Division of Information Technology front desk by calling (573)882-2000."});
}