javascript调用后台的添、删、改、查

前台：
<%@ Page AutoEventWireup="true" CodeBehind="CustomerBizList.aspx.cs" Inherits="SSMIS.UI.MISUI.CustomerBizList"
    Language="C#" MasterPageFile="/Master/WebAdmin.master" %>
<asp:Content ID="Content1" runat="Server" ContentPlaceHolderID="bcr">
    <%--内容开始--%>
    <script type="text/javascript" language="javascript">
        function SearchTag() {
            var searchKey;
            searchKey = document.getElementById("searchKey").value;
            window.location = "CustomerBizList.aspx?searchKey=" + escape(searchKey);
        }
        function AddTag() {
            var tagAddName;
            tagAddName = document.getElementById("tagAddName").value;
            if(tagAddName!="" )
            {
            PageMethods.AddAlbumTag(tagAddName);
            alert("操作成功！");
            }
            else
            {
            alert("请输入内容！")
            }
            window.location = "CustomerBizList.aspx";