CheckBox component Help!

[Molie]

Hello,
i made a form which include checkBox components,i'm using this code to trace the selected lable Form1 = _root.for_text.contents;
// create a common group for our
// checkboxes by setting a property called group
GROUP_NAME_STR1 = "firstQuestion1";
_root.for_text.contents.BasicSES.group = GROUP_NAME_STR1;
_root.for_text.contents.CompleteSERC.group = GROUP_NAME_STR1;
_root.for_text.contents.emailC.group = GROUP_NAME_STR1;
_root.for_text.contents.BannerAds.group = GROUP_NAME_STR1;
_root.for_text.contents.Other.group = GROUP_NAME_STR1;
for (var a in Form1) {
var currentFormItem1 = Form1[a];
// is the current form item a checkbox that is
// part of our group that contains adjectives?
// is the checkbox checked?
var isChecked1 = currentFormItem1.selected;
if (isChecked1) {
// add the current adjective to the message
theSite_promotion = currentFormItem1.label;

trace(theSite_promotion);

senderLoad.site_promotion = currentFormItem1.label;
}
}


so i get always the Site promotions ( in trace )but when i send it into the form i receive only one item not all values??
Can anybody help ?
Thanks!