搜索引擎怎么实现自动搜索

搜索引擎如何实现自动搜索


如何实现这功能，求指导

http://www.cnblogs.com/insus/archive/2011/07/16/2108172.html
http://www.cnblogs.com/insus/archive/2013/03/28/2986217.html
http://www.cnblogs.com/insus/archive/2013/04/05/2986989.html
[解决办法]
use jquery autocomplete:

 $(function(){
            $("#<%=txtSfzh.ClientID %>").autocomplete("../services/SearchSyryInfoService.ashx",{
                width: 500,
                max: 20,
                delay: 20,
                cacheLength: 1,
                formatItem: function(data, i, max) {
                    return data.toString();
                },
                formatResult: function(data) {
                    return data.toString().split(",")[1];
                }
            }).result(function(event, data, formatted) {
                var array = data.toString().split(",");
                $("#<%=txtXm.ClientID %>").val(array[0]);//姓名 
 
                $("#<%=txtSfzh.ClientID %>").val(array[1]);//身份证号
                $("#<%=txtJtzz.ClientID %>").val(array[2]);//家庭住址
                if(array[3].length==0){
                    $("#<%=txtLxdh.ClientID %>").val("00");
                    return;
                }
                $("#<%=txtLxdh.ClientID %>").val(array[3]);//联系电话
            });
        });