If you are staying as some one called you. You will need at lease 7-10K for 2 weeks and that is what they expect.
More than important, you need to prove them that you ll return back, after 2-weeks.
so add all these docs when you apply.
1) To and fro ticket.
2) Employeement ID ( This proves that you will get back to work after ur vacation)
3) A cover letter requesting the VO for temp visa and stating that you wil return back.
In the cover letter list all the documents that you enclosed in the application. ( Sounds goods when VO looks at ur application)
4) Finally in ur application when you answer "what is your purpose of visit?"
Try to answer in a legitimate way so when you answer he should feel you will return back.