点赞效果

j("#a_praise").click(function(e){
			var n=1;
			var $i=j("<b>").text("+"+n);
			var x=e.pageX,y=e.pageY;
			j.post('/commentparisemgr.do', { method:"addparise",msgid:'${msgInfoMap.ID}',userid:'${user.id}'},function(data){
				if(data=='hasrecord'){
					alert("您已经赞过了！")
				}else if(data=='fail'){
					alert("操作异常！")
				}else{
					$i.css({top:y-20,left:x,position:"absolute",color:"blue"});
					j("body").append($i);
					var sp_praise = parseInt(j("#sp_praise").html());
					j("#sp_praise").html(sp_praise+1)
					$i.animate({top:y-180,opacity:0,"font-size":"1.4em"},1500,function(){
						$i.remove();
					});
				}
				
			}); 
		})