//画像のランダム表示
function ramdom(){
	var name;
	var myDate = new Date();
	var s = myDate.getSeconds();
	s = "@" + s;
	s = s.substring(s.length-1,s.length);
	if (s == 1  || s == 4 || s == 7){
		//ぷりちゃん
		name = '<img src="bkimg/newyear1.jpg" BORDER="0">';
	} else if (s == 2  || s == 5 || s == 8) {
		//ミルミル
		name = '<img src="bkimg/newyear2.jpg" BORDER="0">';
	} else {
		//銀ちゃん
		name = '<img src="bkimg/newyear3.jpg" BORDER="0">';
	}
	return name;
}