function blog_top_click(id){
		createRequest();
		if(request){
			request.id = id;
			request.onreadystatechange = updatePage;
			var url = "../common/ajax/blog_top_click.php?id=" + id;
			request.open("GET", url, true);
			request.send(null);
		}
	}
	
	function updatePage() {
		if (request.readyState == 4) {
			if(request.status == 200){
				var top = request.responseText.replace(/(^\s*)|(\s*$)/g,"");
				if(top){
					document.getElementById('top_num_'+request.id).innerHTML = top;
				}else{
					alert("嗨，您已经顶过一次喽，再顶会翻哦...");
				}
			}
		}
	}