HGM - 2003-08-24

I'm looking for a way to post a form onanother website. The login etc is working perfectly, the only problemm left is:

how to post a checkbox named 'userid' which has more than 1 value. For example the userid checkbox has values: 10 and 101 and 140. How do I post this, I guess an array has to be posted. But when I post an array: "java.lang.IllegalArgumentException: Invalid indexed property 'userid[]'".

So what to do???