提取功能在drupal中不起作用

I want to change the home page in drupal site then I have replace the code of page--front.tpl.php with our code which is calling from html.tpl.php and then I want to show a popup after clicking on button which is showing in our home page the name of page which will be open after clicking this button is country.php but it is not showing and showing some error

Warning: extract() expects parameter 1 to be array, 
null given in /home/letseat/public_html/m2/sites/all/themes/leo/change-country.php on line  234

Earlier in drupal site this popup is showing on mouseover on search button (in every page of site) plz help me how can I fix it.

note: country.php is my page in which i have my own data which i want to show on pop up

please help by suggesting me what to do.

thanks in advance

As I don't see your code, the only thing we can do is suggesting you to check parameters that you send to extract() function.

e.g:

$result = is_array($my_array) ? extract($my_array) : 0;