Microsoft JScript runtime error: '$telerik' is undefined
I m getting this error when i m using this in my content place holder of a .aspx page.
This is my code.
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">
<script type="text/javascript">
var $ = $telerik.$;
var uploadsInProgress = 0;
function onFileSelected(sender, args) {
if (!uploadsInProgress)
// $("#btnSubmit").attr("disabled", "disabled");
$("input[type=button]").attr("disabled", "disabled");
uploadsInProgress++;
}
function onFileUploaded(sender, args) {
decrementUploadsInProgress();
}
function onUploadFailed(sender, args) {
decrementUploadsInProgress();
}
function decrementUploadsInProgress() {
uploadsInProgress--;
if (!uploadsInProgress)
$("#btnSubmit").removeAttr("disabled");
}
</script>
</telerik:RadScriptBlock>
</asp:Content>