Flash send to php variables

Hi, could you please help me out:
i wrote such script:
on (press) {
var my_lv:LoadVars = new LoadVars();
my_lv.send(“index.php?id=3”, “_top”, “POST”) ;

second one option is
var my_lv:LoadVars = new LoadVars();
my_lv.id = “1”;
my_lv.sendAndLoad(“index.php”, my_lv, “POST”) ;
but both of them aren’t working… ;/

problem is so that when i hit the button it refresh the whole page, but i need that he just adds the id to index.php and refresh only the bottom of page,
in index.php on one of the tables is such script:
<? include($pg_body); ?>
sorry for my language :wink: