var sysSu=30126;
document.getElementById("iSysSu").innerHTML=sysSu.toString();
setInterval('fSysSu()',300000);
function fSysSu(){
	document.getElementById("jSysSu").src='http://app.xuexigang.com/program/wy.sin/sum.asp';
	document.getElementById("iSysSu").innerHTML=sysSu.toString();
}