I have been married 21 years, and have 5 kids . My husband changed after getting good job and money, I can't take it anymore. What are my rights if I ask for divorce?

Will depend on 100's of things not listed in question.

Where do you live, Spain, France, US, if in the US, what state, laws all differ by location.

Are there minor children to settle custody of.

Do you work, if so, how long, is there joint property owned by both, joint debts,

Basically in my state in US, you can ask for 1/2 of the property you both own. You may or may not have right to spouse support for limited time but that will depend on many earning factors.

will depend on 100's of things not listed in question.

where do you live, Spain, France, US, if in the US, what state, laws all differ by location.

Are there minor children to settle custody of.

do you work, if so, how long, is there joint property owned by both, joint debts,

Basicly in my state in US, you can ask for 1/2 of the property you both own. You may or may not have right to spouse support for limited time but that will depend on many earning factors.
I live in the middle east and needed to know divorce under islamic law

I live in the middle east and needed to know divorce under islamic law

That certainly makes a big difference and should have been specified in the original post.

This site might help:
Muslim Women: Status and Divorce Rights Under Islamic Law (http://www.globalpolitician.com/print.asp?id=4674)