function fill_promotion_text()
{
	// ¾ÆÁ÷ ÆûÀÌ ºÒ·ÁÁö±â ÀüÀ̹ǷΠÆäÀÌÁö ÇÏ´Ü¿¡¼­ ÀÌ ÇÔ¼ö¸¦ È£ÃâÇÑ´Ù.
	var pool_size;
	// promotion_titles, promotion_urlsÀº promotion_data.js¿¡ ÀÖ´Ù.
	pool_size = promotion_titles.length; // Àüü µ¥ÀÌÅÍ °³¼ö

	if(pool_size == 0) return ;

	r_num = Math.random();
	gen_num = Number(r_num.toString().substr(r_num.toString().length-2,2)) % pool_size;

	if(document.top_search)
		document.top_search.search_text.value = promotion_titles[gen_num];
}