function login()
{
    var loginName     = $("#US_UName").val();
    var loginName     = $.trim(loginName);

    if (loginName == "") {

        c_alert("Authentication Error","Please enter your username");
        $("#US_UName").focus();   // not working
        return false;

    }
}

function c_alert(Title,Msg) {
    $.confirm({
        'title'     : Title,
        'message'   : Msg,
        'buttons'   : {
            'OK'    : {
                'class' : 'blue',
                'action': function(){
                    return;
                }
            }
        }
    });
};