function checkloginform(){
var username = document.getElementById("user_name").value;
var password=document.getElementById("password").value;
var verifycode = document.getElementById("VerifyCode").value;
if (username.length<2) {
alert('请填写用户名!');
document.getElementById("user_name").focus();
return false;
}
if (password.length<2){
alert('请填写密码!');
document.getElementById("password").focus();
return false;
}
return true;
}
document.write('')