function popupLogin() {
        // check to make sure a valid username has been entered
        if (!formIsValid()) return;

        var username = document.login.username.value;
        var password = document.login.password.value;
        var lang = document.login.lang.value;

        // the size of the popup window
        var width = 800;
        var height = 600;

        // the x,y position of the popup window
        // NOTE: this formula will auto-center the popup on the screen
        var y = (screen.height - height) / 2;
        var x = (screen.width - width) / 2;

        var url = 'http://www.enjoylive.ro/support/flashchat.php?username=' + username + '&password=' + password + '&lang=' + lang;
        var options = 'width=' + width + ',height=' + height + ',top=' + y + ',left=' + x + ',resizable';

        // open the chat window as a popup, instead of embedded in webpage
        window.open( url, 'chat', options );
}

function popupEmail(lang){

        // the size of the popup window
        var width = 400;
        var height = 300;

        // the x,y position of the popup window
        // NOTE: this formula will auto-center the popup on the screen
        var y = (screen.height - height) / 2;
        var x = (screen.width - width) / 2;

        var url = 'http://www.enjoylive.ro/support/?lang='+lang;
        var options = 'width=' + width + ',height=' + height + ',top=' + y + ',left=' + x + ',resizable';

        // open the chat window as a popup, instead of embedded in webpage
        window.open( url, 'support', options );
}