function randomvoice()
{

voice_number = 7;  //今回はボイスで

voice = Math.floor(Math.random() * voice_number);
if (voice == 0) { img = "http://cotton-soft.com/img/gratin_on_sale_1.jpg";
voice_num="gratin_on_sale_1";
}
else if (voice == 1) { img = "http://cotton-soft.com/img/gratin_on_sale_2.jpg";
voice_num="gratin_on_sale_2";
}
else if (voice == 2) { img = "http://cotton-soft.com/img/gratin_on_sale_3.jpg";
voice_num="gratin_on_sale_3";
}
else if (voice == 3) { img = "http://cotton-soft.com/img/gratin_on_sale_4.jpg";
voice_num="gratin_on_sale_4";
}
else if (voice == 4) { img = "http://cotton-soft.com/img/gratin_on_sale_5.jpg";
voice_num="gratin_on_sale_5";
}
else if (voice == 5) { img = "http://cotton-soft.com/img/gratin_on_sale_6.jpg";
voice_num="gratin_on_sale_6";
}
else  { img = "http://cotton-soft.com/img/gratin_on_sale_7.jpg";
voice_num="gratin_on_sale_7";
}

top_voice = "<A HREF='http://cotton-soft.com/img/" + voice_num  +".mp3' target='_blank'><IMG SRC='"+ img +"' ALT='好評発売中！よろしくお願いしますー' BORDER='0' WIDTH='390' HEIGHT='80'></A>";

document.write(top_voice);

};

// end