<link type="text/css" rel="StyleSheet" href="http://scriptozina.ucoz.ru/css/garland.css" />
   <div id="garland" class="garland_4"><div id="nums_1">1</div></div>   

   <script type="text/javascript">   
   function garland() {   
   nums = document.getElementById('nums_1').innerHTML   
   if(nums == 1) {document.getElementById('garland').className='garland_1';document.getElementById('nums_1').innerHTML='2'}   
   if(nums == 2) {document.getElementById('garland').className='garland_2';document.getElementById('nums_1').innerHTML='3'}   
   if(nums == 3) {document.getElementById('garland').className='garland_3';document.getElementById('nums_1').innerHTML='4'}   
   if(nums == 4) {document.getElementById('garland').className='garland_4';document.getElementById('nums_1').innerHTML='1'}   
   }   

   setInterval(function(){garland()}, 600)   
   </script>