function add_like(id){
	var zan_zhi = $('#zan_'+id).html();
	zan_zhi = Number(zan_zhi)+1;
	$.post(g.self,{'act':'add_like','id':id},function(data){
		if(data != '未登录'){
			$('#zan_'+id).html(zan_zhi);
			document.getElementById('zan_on_'+id).onclick=function(){del_like(id);}
			document.getElementById('zan_img_'+id).src="/images/zan2.gif";
			document.getElementById('zan_img_'+id).title="取消赞";
		}else{
			//alert(data);
			show_header_top_list();
		}
	});
}
function del_like(id){
	var zan_zhi = $('#zan_'+id).html();
	if(!zan_zhi){zan_zhi=0}else{zan_zhi = Number(zan_zhi)-1}
	$.post(g.self,{'act':'del_like','id':id},function(data){
		if(data != '未登录'){
			$('#zan_'+id).html(zan_zhi);
			document.getElementById('zan_on_'+id).onclick=function(){add_like(id);}
			document.getElementById('zan_img_'+id).src="/images/zan.gif";
			document.getElementById('zan_img_'+id).title="赞";
		}else{
			//alert(data);
			show_header_top_list();
		}
	});

}