function pass_login_data(callback)  {
var url = '/en/member_login/login_ajax.html?t='+Math.floor(Math.random()*10000000);
var pars = Object.extend({ 
            from_url:$("from_url").value,
            go_url:$("to_url").value,
            strLoginID:$("Username").value,
            strPassword:$("Password").value
        }
);

var myAjax = new Ajax.Request(
  url,
  {
    method: 'post',
    parameters: pars,
    onComplete: callback
  }
);

}

function pass_login_Response(originalRequest) {
var result = ('/*-secure-\n'+originalRequest.responseText+'\n*/').evalJSON();
 if (result.login == "success") {
    check_login_data(check_login_Response);
    if(result.go_url != '')window.location.replace(result.go_url);
    //afterLoginCallBack = redirectFormURL;
} else {
    alert(result.errorMsg);
}
}

function go_login() {
if (validation($("login_form"))) {
    pass_login_data(pass_login_Response);
}
return false;
}