function feedback(type, message) {
    var cls = 'success-msg';
    switch (type) {
        case('WARN'):
            cls = 'warning-msg';
            break;
        case('ERROR'):
            cls = 'error-msg';
            break;
        case('INFO'):
            cls = 'info-msg';
            break;
    }
    var feedbackDiv = document.getElementById('error-header');
    if (feedbackDiv) {
        var html = '<p>' +  message + '</p>';      
        feedbackDiv.innerHTML = html;
    }
}

function clearFeedback() {
    var feedbackDiv = document.getElementById('error-header');
    if (feedbackDiv) {
        feedbackDiv.innerHTML = '';
    }
}

function openPopUp(location){
    var extWin = window.open( location, "", 'left=20,top=20,width=1000,height=600,toolbar=0, scrollbars=1, resizable=0,' +
                                            'menubar=0, location=0, directories=0, status=0');
}