Howdy folks,

I tried whole day...but couldn't figure this out.

There is a <asp> button control. When it is clicked, I have two handlers on it. One is client side and other is server side.

I want the client side (javascript) to be fired before the server side code is fired. So I made the client side javascript code to return false on a conditional statement and return true if the condition is successfull. From my samples, I learnt that if the javascript funtion returns false the server side code doesn't get fired. But, for some reason, it doesn't behave like that. So I had to use UseSubmitBehaviour='false" on the button control. This way, the server side event is not getting fired. But I want the server side event to get fired when the client side script returns false. How can i do this? I tired whole day...any help is greatly appreciated.

<%@ Page Title="" Language="C#" MasterPageFile="~/QRMDMS.Master" trace="true" AutoEventWireup="true" CodeBehind="WebForm7.aspx.cs" Inherits="FHLBSF.QRMDMS.WebUI.WebForm7" %> 
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server"> 
<asp:Content ID="Content2" ContentPlaceHolderID="MainContentPlaceHolder" runat="server"> 
<div style="height: 25px"> 
<div style="table-layout: fixed; width: 600px; height: 65px; position: fixed; z-index: auto;"> 
    <fieldset style="width: 382px; height: 47px;"> 
        <legend style="font-weight: bold">BS-IS Types</legend> 
        <asp:DropDownList ID="DropDownListBSISTypes" AutoPostBack="false" runat="server" 
            Height="23px" Width="362px"> 
    <asp:Button ID="ButtonAdd" UseSubmitBehavior="true" OnClick="ButtonAddClick" OnClientClick="return AddClientSide();" Text="Add" runat="server" /> 
    <asp:Button ID="ButtonEdit" runat="server" Text="Button" /> 
    <asp:Button ID="ButtonRemove" runat="server" Text="Remove" /> 
        <asp:Label ID="LabelBSISType" runat="server" Text="BS-IS Type"></asp:Label> 
        <asp:TextBox ID="TextBoxBSISType" runat="server" Width="282px"></asp:TextBox> 
  <script  type="text/javascript"> 
      function AddClientSide() { 
          alert("started the client side script"); 
          var varButtonAdd = document.getElementById("<%=ButtonAdd.ClientID%>"); 
          var varproperty = varButtonAdd.getAttribute("value"); 
          if (varproperty == "Save") { 
              alert("button now is in save mode"); 
              varButtonAdd.setAttribute("value", "Add"); 
              return false; 
          else { 
              alert("button now is in add mode"); 
              varButtonAdd.setAttribute("value", "Save"); 
             return true; 
          }      } 
protected void ButtonAddClick(object sender, EventArgs e) 
            Loggers.AssemblyLogger.Debug("Button Add click"); 
                string a = ""; 
            catch (Exception ex)