//AJAX 函式庫
function getRandomInt(max) {
  return Math.round((Math.random() * (max-1) ))+1;
}

function getUncacheUrl(url){
  if( url.indexOf('?') == -1 )
	return url +"?" + getRandomInt(1000) + 'd=' + new Date().getTime();
  else
	return url +"&" + getRandomInt(1000) + 'd=' + new Date().getTime();
}

function calnum(src) {
  url = getUncacheUrl(src);
  new Ajax.Request(url, {
    method: 'get',
    onComplete: function(transport) {}
  });          	
}