Yes, it's two rounds majority system (the second round is between two candidates with highest number of votes from the first round – if no candidate obtains 50+% majority in the first round) similar to elections system already used for Senate elections (Senate is upper chamber of Czech parliament).
Interval between first and second round will be 14 days if necessary (if no candidate obtains more than 50 percent in the first round)
If we can assume by Senate elections, second round turnout could be 30-50% lower than in first round.
You have to understand, that twenty years ago this country was communist state. Every company, every school was under state control. Between 1948-89, if you wanted to have good job, your children accepted to the university, permission to go on foreign holidays, you had to collaborate with The party more or less.
Even many people who were dissidents after 1968 was communists in fifties. After war many people really believed in communists ideas, they felt that Western countries betrayed them. -
http://en.wikipedia.org/wiki/Munich_agreement
Many former members now say they was member only because they wanted to have job etc.
In many todays democratic parties are people with communist pasts.
If you are interested in LONG text about this issue, try this:
http://monumenttotransformation.org/atl ... upnik.html