Please help me find out what these songs are. They are both Jewish/Eastern European/Russian sounding instrumental tunes. I'm sure they are traditional songs.

The first tune is here:
http://www.youtube.com/watch?v=PfGMJ-kZZR8
Originally I thought it was called "Mazel Tov", but it doesn't sound like any of the songs called "Mazel Tov" that I can find, so I'm pretty sure I had the wrong name for it.

The second tune is here:
http://www.youtube.com/watch?v=e6erBIrL9FU
The only information I have about it is that it is a jewish freylach.

Thanks.