While there will be people who aren't happy at the results of any given election (look at the bellyaching that we heard from the Democrats after our last election), there's no indication of widespread rejection of this election as some sort of sham election, unlike say in the recent Venezuela, where there were serious and credible reports of fraud.
The Iranians have chosen their leader, an Islamic terrorist. Fine. They have acted like a bunch of nutters for over 25 years, and with a large increase in the nuttiness factor since about September of last year.
A few pictures of some of the folks jubilant at the results of the elections in Iran.