I want to have a couple of variables in my url for tracking purposes. The link would look something like this:

mysite.com/index.php?track=0044574789798289723424b&kw={keyword}

Questions:

1. Can I have more than one variable, like the example above?

2. Is the track variable section too long or can it be any length?

3. Will they strip off the 00 at the beginning of the track variable to send 44574789798289723424b or will they always treat it as a complete string?

Thanks,

Jon