here is my situation :-

a) i hv two interviews to attend. one on monday and other one on thrusday.  i plan to attend both then only decide which job to take.. so what should i tell to the employer on monday if she ask me whether to accept the offer or not??

b) before this two interviews, i hv already accept another job. but now i dont want to do that job. so should i call to the company and if i call.. what should i tell the boss?

thankss