cakephp dropdownlist

this is the dropdown list link in my edit page when editing it selects the friend automatically, but i want it shows 'select your exiting friend' by default开发者_如何学编程(whenever the page loads)..

echo $form->input('PostCard.friend_id',array('label'=>__l('Friend Name List'),'empty'=>__l('Select Your Existing Friend'),'options'=>$friends));

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You can override selected value: http://book.cakephp.org/view/199/options-selected

echo $form->input('PostCard.friend_id',array('label'=>_l('Friend Name List'),'empty'=>_l('Select Your Existing Friend'),'options'=>$friends, 'selected'=>false));