var docomo = "http://docomo.chintai.net/index.do?uid=NULLGWDOCOMO";
var au = "http://ez.chintai.net/index.html";
var softbank = "http://j.chintai.net/?uid=1&sid=A209&pid=P122";

document.write("<img src='"+docomo+"' border='0' width='1' height='1' />");
document.write("<img src='"+au+"' border='0' width='1' height='1' />");
document.write("<img src='"+softbank+"' border='0' width='1' height='1' />");