function Kinkyu_Main (host){
var el = document.createElement("scr"+"ipt");
el.setAttribute("src","http://netoff.jp/kinkyu/" + host.substring(0, host.indexOf(".",0)) + "/oshirase_netoff.js");
el.setAttribute("charset","UTF-8");
document.getElementsByTagName("head").item(0).appendChild(el);
}