// random
jmp = new Array();
img = new Array();

// to link
jmp[0] = "/redirect/index.php?id=tbc";
jmp[1] = "/redirect/index.php?id=tbc";


// img address
img[0] = "http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2654455&pid=879133931";
img[1] = "http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2654455&pid=879133932";


n = Math.floor(Math.random()*jmp.length);
document.write("<a href='"+jmp[n]+"' target='_blank'>");
document.write("<img src='"+img[n]+"' width='120' height='120' alt='' class='ov' />");
document.write("</a>");