ajax - Jquery code refreshing whole page instead of a part of a page -

$(document).ready(function () {     interval = setinterval(updatediv, 1000); });  function updatediv() {     var letest_id = $("ul.pagination1 :first-child").attr('id').replace('record-', '');      $.ajax({         method: 'get',         cache: false,         url: 'url.php?load_s=ajax&group_id=<?php echo $g_i_s;?>&max_id=' + letest_id + '&ref=<?php echo time();?>',          success: function (data) {              if (data) {                 $('ul.pagination1').prepend(data).fadein('slow');             }         },          error: function () {              clearinterval(interval);         }     });     var comid = $('#last_id_ajax').val();     $.ajax({         method: 'get',         cache: false,         url: 'url.php?group_id=<?php echo $g_i_s;?>&commentid=' + comid + '&ref=<?php echo time();?>',         success: function (result) {             if (result) {                 var divi = $(result).find(".imgd").attr('alt');                 var last_id_ajax_val = $(result).find(".cid").attr('id');                 $('#last_id_ajax').val(last_id_ajax_val);                 // alert(newcoment);                 $(divi).append(result).fadein('slow');             }         },          error: function () {             clearinterval(interval);         }     }); } 

hi using code refresh files have put in wall system , getting file (main index file code used) show in block, purpose refresh block calling index file, code making favicon blink every few seconds , see browser showing waiting www.mywebsite.com every few seconds, how can fix update part of block , not whole page. hope makes sense first post here , thank in advance.

edited

tried update per suggestion doesn't work , know it's messed up

$(document).ready( 

function update() { var letest_id = $("ul.pagination1 :first-child").attr('id').replace('record-',''); $.ajax({ method:'get', cache: false, url: '/themes/default/fbcommentstyle/latest_post.php?load_s=ajax&group_id=&max_id='+letest_id+'&ref=',

     success: function(data){       if(data){         $('ul.pagination1').prepend(data).fadein('slow');      }      },    error:function(){     cleartimeout(updatediv);   } });  var comid = $('#last_id_ajax').val();       $.ajax({       method:'get',         cache: false,       url: '/themes/default/fbcommentstyle/latest_comment.php?group_id=<?php echo $g_i_s;?>&commentid='+comid+'&ref=<?php echo time();?>',       success: function(result){          if(result){               var divi = $(result).find(".imgd").attr('alt');               var last_id_ajax_val = $(result).find(".cid").attr('id');                $('#last_id_ajax').val(last_id_ajax_val);                  $(divi).append(result).fadein('slow');              }       },        error:function(){          cleartimeout(updatediv);       }    } 3000); 

}