Mozilla上的Ajax或html错误？

The web site was built on asp.net platform. Ajax enabled. It works very well on ie or chrome, but it does not work on mozilla...? You see arrows work great but the numbers does not appear? how can i fix..

http://dexiab-2.hosting.parking.ru//Default.aspx#world the link to see the detail..

I think that the problem is the label tag that you use, change the label to span (or div), and probably its going to work.