//var topElementId = '0', t;

		$(document).ready(function(){t = setTimeout('listSlideUp()', 20000);});

    function listSlideUp() {
      $('#text_1').slideUp(1000, function(){
      $('#text_2').slideDown(1000);
      });
      t = setTimeout('listSlideUp_2()', 20000);
    }
    
     function listSlideUp_2() {
      $('#text_2').slideUp(1000, function(){
      $('#text_3').slideDown(1000);
      });
      t = setTimeout('listSlideUp_3()', 20000);
    }
    
     function listSlideUp_3() {
      $('#text_3').slideUp(1000, function(){
      $('#text_1').slideDown(1000);
      });
      t = setTimeout('listSlideUp()', 20000);
    }