function decorateLists() {

 decorateList(document.getElementsByTagName('ul'));
 decorateList(document.getElementsByTagName('ol'));

 

}

function decorateList(el) {
	for (i =0,  max = el.length; i < max; i++) {
		decorateLi(el.item(i));
        }
}

      function isIE()
      {
      return /msie/i.test(navigator.userAgent) && !/opera/i.test(navigator.userAgent);
      }



function decorateLi(el) {


 		if (isIE()) {
	  		var nameA = "className";
		} else {
			var nameA = "class";
		}
	
		var it = 1;
		var lst = el.getElementsByTagName('li');

		for (i =0,  max = lst.length; i < max; i++) {

				lst[i].setAttribute(nameA, "li_" + (i+1));
	
		}
}