function Randm() {
jmp = new Array();
img = new Array();
// ジャンプ先のアドレス(数字は画像と対応)
jmp[0] = "about-bingata.html";
jmp[1] = "history.html";
jmp[2] = "aboutus.html";
jmp[3] = "steps.html";
jmp[4] = "http://www.bingata.jp";
jmp[5] = "http://blog.bingata.jp";
jmp[6] = "steps.html";
jmp[7] = "aboutus.html";
jmp[8] = "steps.html";
jmp[9] = "about-bingata.html";
jmp[10] = "http://bingata.jp";
// 画像のアドレス(数字はジャンプ先のアドレスと対応)
img[0] = "img/vis0.jpg";
img[1] = "img/vis1.jpg";
img[2] = "img/vis2.jpg";
img[3] = "img/vis3.jpg";
img[4] = "img/vis4.jpg";
img[5] = "img/vis5.jpg";
img[6] = "img/vis6.jpg";
img[7] = "img/vis7.jpg";
img[8] = "img/vis8.jpg";
img[9] = "img/vis9.jpg";
img[10] = "img/vis10.jpg";
n = Math.floor(Math.random()*jmp.length);
document.write("<a href='"+jmp[n]+"'>");
document.write("<img src='"+img[n]+"' border='0'>");
document.write("</a>");
}