Update Panel not working in Google Chrome

When you are using Update panel in asp.net..You will find problem that it is not working in google chrome and safari
So for this you have to just following steps..

Step 1 :
You need to add a little bit of javascript in to aid the Ajax.NET framework in recognising WebKit based browsers that looks like the following:

if (typeof(Sys.Browser.WebKit) == "undefined") {
    Sys.Browser.WebKit = {};
}

if (navigator.userAgent.indexOf("WebKit/") > -1 ) {
    Sys.Browser.agent = Sys.Browser.WebKit;
    Sys.Browser.version = 
        parseFloat(navigator.userAgent.match(/WebKit\/(\d+(\.\d+)?)/)[1]);
    Sys.Browser.name = "WebKit";
}

Step 2 :
You need to add that to a javascript file and reference it in your ScriptManager:

<asp:scriptmanager id="ScriptManager1" runat="server">
<scripts>
    <asp:scriptreference path="~/javascript/WebKit.js">
    </asp:scriptreference>
</scripts>
</asp:scriptmanager>

That's it.Now Updatepanel will work in Google Chrome and all other browsers..