size = "width=468 height=60";
r_time = 5000;

url = new Array();
img = new Array();


url[0] = "http://www.bunka.co.jp/pub/00000010/index2.shtml"; img[0] = "images/banner.gif";
url[1] = "http://www.yahoo.co.jp"; img[1] = "images/banner2.gif";
url[2] = "http://www.yahoo.co.jp"; img[2] = "images/banner3.gif";
url[3] = "http://www.yahoo.co.jp"; img[3] = "images/banner4.gif";
url[4] = "http://www.yahoo.co.jp"; img[4] = "images/banner5.gif";
url[5] = "http://www.yahoo.co.jp"; img[5] = "images/banner6.gif";

img2 = new Array();
for (i in img) {
   img2[i] = new Image();
   img2[i].src = img[i];
}

function img_change() {
   p = Math.round(Math.random()*(url.length - 1));
   document.pos.src = img2[p].src;
   setTimeout("img_change()",r_time);
}

function jump() {
   window.open(url[p], "_blank"); 
}

DOC = '<a href="" onClick="jump(); return false"><img name=pos '+size+' border=0></a>';