Query: Change of Employment & Sponsor

[malar82]

Dear Immigration Board Experts

I'm in Tier 2 General from June 2013. That is last 1 Year 4 Months with the designation Business Development Manager. I thought of changing my career and now I got job in IT sector. My query is

1. Can I change my employment and sponsor? Do UKBA accept that?? Is there any possible for rejection?
2. If I'm changing my employment do I need to show the experience IT Salary?
3. Is this will count in Tier 2 continues period? will this affect when applying extension or ILR??
4. What are the forms I need to fill for change of employment and sponsor?
5. What are the documents need to submit during applying?

I appreciate if any experts can answer my question.

Regards
Malar