how can i sure that my browser jdk version is higher or equal with
1.5? and if my jdk version is lower than 1.5, how can i change this
jdk version to 1.5 or higher?
when i open my applet  in browser i see this error  in java  console!
what is this means?
Error loading class: project.userpage
java.lang.NoClassDefFoundError
java.lang.ClassNotFoundException: project.userpage
at com/ms/vm/loader/URLClassLoader.loadClass
at com/ms/vm/loader/URLClassLoader.loadClass
at com/ms/applet/AppletPanel.securedClassLoad
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.run
at java/lang/Thread.run