SWITCHING parties nowadays is as easy as changing hair color: yesterday yellow, today blue, tomorrowheaven knows. That is what Ruhut Sitompul, lawyer and member of the Golkar Party, did. Disappointed about Jusuf Kallas leadership of the party, he has now jumped to the Democrat Party. The difference is: while in Golkar he crawled from the bottomfor 30 years he served as a Banyan Tree activistin the Democrat Party he landed as Chairman of the Corru