参考网址:
http://support.microsoft.com/kb/936993/zh-cn
http://weblogs.asp.net/bleroy/archive/2007/01/31/how-to-work-around-the-quot-access-denied-quot-cross-domain-frame-issue-in-asp-net-ajax-1-0.aspx
http://blogs.msdn.com/delay/archive/2007/02/05/safely-avoiding-the-access-denied-dialog-how-to-work-around-the-access-denied-cross-domain-iframe-issue-in-the-ajax-control-toolkit.aspx
http://www.cnblogs.com/jackielin/archive/2007/02/07/643411.html

1、为ScriptManager添加脚本引用，不从ScriptResource.axd中加载MicrosoftAjax.js脚本，而是直接加载

<asp:ScriptManagerID="ScriptManager1"runat="server"EnablePageMethods="true"><Scripts><asp:ScriptReference Name="MicrosoftAjax.js"ScriptMode="auto"Path="~/ScriptLibrary/System.Web.Extensions/1.0.61025.0/MicrosoftAjax.js"/></Scripts></asp:ScriptManager>

2、修改MicrosoftAjax.debug.js
删除

switch(Sys.Browser.agent){
caseSys.Browser.InternetExplorer:

与

caseSys.Browser.Safari:

之间的脚本，替换为如下脚本：

Sys.UI.DomElement.getLocation=function(element){
if(element.self||element.nodeType===9)returnnewSys.UI.Point(0,0);
varclientRect=element.getBoundingClientRect();
if(!clientRect){
returnnewSys.UI.Point(0,0);
    }varownerDocument=element.document.documentElement;
varoffsetX=clientRect.left-2+ownerDocument.scrollLeft,
        offsetY=clientRect.top-2+ownerDocument.scrollTop;
    
try{
varf=element.ownerDocument.parentWindow.frameElement||null;
if(f){
varoffset=2-(f.frameBorder||1)*2;
            offsetX+=offset;
            offsetY+=offset;
        }    }catch(ex){
    }    
returnnewSys.UI.Point(offsetX, offsetY);
}break;

3、修改MicrosoftAjax.js
删除

switch(Sys.Browser.agent){caseSys.Browser.InternetExplorer:

与

caseSys.Browser.Safari:

之间的脚本，替换为如下脚本:

Sys.UI.DomElement.getLocation=function(a){if(a.self||a.nodeType===9)returnnewSys.UI.Point(0,0);varb=a.getBoundingClientRect();if(!b)returnnewSys.UI.Point(0,0);varc=a.document.documentElement,d=b.left-2+c.scrollLeft,e=b.top-2+c.scrollTop;try{varg=a.ownerDocument.parentWindow.frameElement||null;if(g){varf=2-(g.frameBorder||1)*2;d+=f;e+=f}}catch(h){}returnnewSys.UI.Point(d,e)};break;

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