function Amazon() {
	num = Math.floor(Math.random() * 3);
	switch(num) {
		case 0:
			document.write('<iframe src="http://rcm-jp.amazon.co.jp/e/cm?t=reviewspace-22&o=9&p=13&l=bn1&mode=books-jp&browse=202188011&fc1=4040FF&lt1=_blank&lc1=FF0080&bg1=FFFFFF&f=ifr" marginwidth="0" marginheight="0" width="468" height="60" border="0" frameborder="0" style="border:none;" scrolling="no"></iframe>');
			break;
		case 1:
			document.write('<iframe src="http://rcm-jp.amazon.co.jp/e/cm?t=reviewspace-22&o=9&p=13&l=bn1&mode=dvd-jp&browse=561958&fc1=4040FF&lt1=_blank&lc1=FF0080&bg1=FFFFFF&f=ifr" marginwidth="0" marginheight="0" width="468" height="60" border="0" frameborder="0" style="border:none;" scrolling="no"></iframe>');
			break;
		case 2:
			document.write('<iframe src="http://rcm-jp.amazon.co.jp/e/cm?t=reviewspace-22&o=9&p=13&l=bn1&mode=videogames-jp&browse=637394&fc1=4040FF&lt1=_blank&lc1=FF0080&bg1=FFFFFF&f=ifr" marginwidth="0" marginheight="0" width="468" height="60" border="0" frameborder="0" style="border:none;" scrolling="no"></iframe>');
			break;
	}
}