Create Acrobat fillable form with javscript calcs

I have a four page form. It needs to be converted to a pdf fillable form with java scripts. I will provide calculations. The pdf will be viewed online (with reader only in most cases) and entered by clients and either e-mailed, printed, or saved. Example of calcs below. 1. One field would contain a last menstrual period (LMP) and another the cycle length (normally 28 days). Using those fields, the javascript will calculate the estimate due date. LMP + (28-28) + 280 days = due date If longer cycle, say 31 days; LMP + (31-28) + 280 If shorter cycle, say 25 days; LMP + (25-28) + 280 2. One field contains todays date and another contains the woman's due date. I would need a javascript to calculate the number of days she is into her pregnancy. For instance today's date Oct 4 2008 and due date Jan 1 2009. Today she is 27 weeks and 2 days. This can be calculated by subtracting the days left in pregnancy, 280- (due date - todays date) = # days into pregnancy, and then convert to weeks and days. 3. Finally, using ultrasound dating, on a given date the woman is so many weeks and days pregnant, you would calculate the due date. Also, calculate BMI based on height and weight entered. 4. The due date would be used to calculate current weeks and days, when a new current date is entered. Part of the form is a visit summary, ie on this day (user enters date) and utilizing specified due date, the weeks and days would be calculated. 5. Finally, use like javascript to highlight certain fields in the pdf based on the drop down field selected in another field. For instance is one field contain "yes", I'd like to automatically highlight another field in yellow. 6. Explain, and implement, how to have the patient complete the form online and submit the entire pdf using my own servers e-mail rather than relying on the individual to have an email program on her computer. The pdf will be sent over SLL, adn I'd like the pdf to be password protected before sending (my password) I'll provide all calcs, you simply need to know how to do the java script accurately. Has to be done with Adobe Designer.