$('html').addClass('js');

$(function() {

  var timer = setInterval( showDiv, 9000);

  var counter = 0;

  function showDiv() {
    if (counter ==0 ) { counter++; return; }
	
    $('div','#testimonialBlock') 
      .stop()
      .hide()
      .filter( function() { return this.id.match('div' + counter); })   
      .fadeIn('slow');
    counter == 5? counter = 0 : counter++; 

  }

});