Adding target _blank to ajax form based on response

I have been pulling my hair out on this for a few days now, and I cannot seem to actually execute something as simple as this successfully on submission of my form.

What I am trying to do is this... If I fill out my form and it passes validation and the ajax response is sold on click, I would like the form to go to /success and open a new tab/window that goes to google.com else just go to the failed page

It's simple I know. The problem is this, that when I do click it and have a new window/tab come up, the pop up window blocks it. This tells me that this method isnt really a valid method of clicking the button.

This is what I have as my form .module

    function storageform($form, &$form_state){

        $form['first_name'] = array(
            '#type'  => 'textfield',
            '#title' => t('First Name'),
            '#required' => TRUE,
        );

        $form['submit'] = array(
            '#type' => 'submit',
            '#value' => t('Submit'),
            '#ajax' => array(
                'callback' => 'storage_form_ajax_callback',
            ),
            '#attached' => array(
                'js' => array(
                drupal_get_path('module', 'storage_form') . '/storage_redirect.js' => array(
                'scope' => 'footer',
            ),
         ),
      ),
    );

        if(isset($form_state['values'])){
            $form['page_output'] = array(
            '#markup' => storagedb_submit($form, $form_state)
            ); 
        }
        return $form;   
    }




    /**
     ** Form Ajax
     **/
function storage_form_ajax_callback($form, $form_state) {

      $receipt_info = 'sold';

$commands = array();
      $commands[] = ajax_command_remove('div.messages');
      $commands[] = ajax_command_before('#main', theme('status_messages'));

    if(!form_get_errors()){
      $commands[] = array(
        // The command will be used in JavaScript file 
        'command' => 'storage_redirect',
        // JavaScript function:
        'itemstatus' => $receipt_info,
    );    

    }
    return array('#type' => 'ajax', '#commands' => $commands);
}

    function storage_form_ajax_callback_validate($form, $form_state){

        if($form_state['values']['first_name'] == ''){
            form_set_error('first_name', t('First name required.'));
        }
    }

storage_redirect.js

    (function($){
    Drupal.ajax.prototype.commands.payday_redirect = function(ajax, response, status){          
                if(response.leadstatus == 'sold'){
document.location.replace("http://localhost/storageform/thanks");
window.open('http://www.google.com','_blank');
                    }else{
document.location.replace("http://localhost/storageform/failed");
                }
        }
    }(jQuery, Drupal));

Please someone help me with this small nightmare of a problem I am having. Thank you.