// show/hide the offer
function show_offer(offer_id){
	$('offer_text_'+offer_id).className='offer_visible';
	$('offer_more_'+offer_id).hide();
	$('offer_less_'+offer_id).show();
}
function hide_offer(offer_id){
	$('offer_text_'+offer_id).className='offer_hidden';
	$('offer_more_'+offer_id).show();
	$('offer_less_'+offer_id).hide();
}