function init_exhibitors_select() {
    $('#affAlpha select').change(function() {
            window.location=$('#affAlpha select option:selected').attr('rel');
        }
    );
    $('#affPays select').change(function() {
            window.location=$('#affPays select option:selected').attr('rel');
        }
    );
}

$(document).ready(function() {
  init_exhibitors_select();
});