jmp = new Array();
img = new Array();
jmp[0] = "http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2546157&pid=879661711";
jmp[1] = "http://px.a8.net/svt/ejp?a8mat=1O4YYH+ETGESY+CO4+NYP3L";
jmp[2] = "http://px.a8.net/svt/ejp?a8mat=1O5DTH+C6720I+CO4+674EP";
img[0] = "http://www.hajimete-web.com/header-ad/rocketnet.gif";
img[1] = "http://www.hajimete-web.com/header-ad/sixcore.gif";
img[2] = "http://www.hajimete-web.com/header-ad/xserver.gif";
n = Math.floor(Math.random()*jmp.length);
document.write("<a href='"+jmp[n]+"' target='_blank'>");
document.write("<img src='"+img[n]+"' border='0'>");
document.write("</a>");