Form is not submit handler is not called
Change this:

$form['submit'][] = array('package_get_form'=> array());

to this:

$form['#submit'][] = 'package_get_form';

btw.

function package_get_form($form, &amp;$form_state)
{
    drupal_set_message('working');
?&gt;
    &lt;script language="javascript"&gt;
        alert("aaa");
    &lt;/script&gt;
&lt;?php
return; 
}
?&gt;


This looks really messy. Try that instead:

function package_get_form($form, &amp;$form_state) {
  debug('test');
}


But the best option would be to use standard submit handler instead declaring your own name convention:

function pricepackages_form_submit($form, &amp;$form_state) {
...
}