Passing info from checkbox to asp?

So my AS on my submit button looks like this:
on (release) {
chk1 = chk1.getSelectedItem().label;
getURL(“http://www.holmes.7host.com/promise/mypage.asp”, “”, “POST”);

}

Check if you passed the chk1 variable. In your code hre the seconds parameter of getURL is blank.
should be something like geturl(…, “chk1=” + chk1, …);