Publish preview as flash VS publish preview as html

Ive made a movie that add strings from several input text fields to an array. This array is sent from the flash video to php.
This is working fine when I preview the movie as Flash. The php script prints the variables as intended.

But when I preview it as html the arrays are all empty…
Can anyone tell me why?

[AS]
on (release) {
number_of_attr1 = main._currentframe + 1;
suggestions1 = new Array();
if(main.attr1.text.isEmpty()) {
gotoAndStop(8);
}
else {
for(i=1; i<=number_of_attr1; i++) {
attr = main[“attr”+i]
suggestion = attr.text;
if(!suggestion.isEmpty()) {
suggestions1.push(suggestion);
}
}
var submit1 = new LoadVars();

submit1.sugg1 = suggestions1;
submit1.send(“http://mylink.php","_self","POST”);

}//end else
}
[/AS]