var isSubmited = false;

function checkLogin() {
    
   if ($("#memberid").val() == "") {
       $("#errorMessage").html("Please enter your id");
        return false;
    }
    if ($("#password").val() == "") {
        $("#errorMessage").html("Please enter your password");
        return false;
    }
                    
    var loadUrl = "ajax.ajax";
    var params = "assembly=Capture&Command=captureuser&Data=" + $("#memberid").val() + "|" + $("#password").val() + "|" + $("#siteid").val() + "|" + $("#email").val();
    $.ajax({
        type: "GET",
        url: loadUrl,
        data: params,
        cache: false,
        success: function(html) {
            alert("Y: " + html);
        },
        failure: function(html) {
            alert("N: " + html);
        }
    });

    return false;
}