If I have the following controls.
<telerik:RadCodeBlock ID="codeBlock" runat="server"> <script type="text/javascript"> function OnClientSeriesClicked(sender, args) { if (args.get_seriesName() != "Months") $find("<%= RadAjaxManager1.ClientID %>").ajaxRequest(args.get_category()); } function openWinNavigateUrl() { $find("<%=RadWindow_NavigateUrl.ClientID %>").show(); } </script> </telerik:RadCodeBlock><telerik:RadHtmlChart ID="RadHtmlMainBar" Transitions="true" runat="server" Height="450px" Width="550px" OnClientSeriesClicked="OnClientSeriesClicked"> </telerik:RadHtmlChart> <telerik:RadWindow runat="server" ID="RadWindow_NavigateUrl" NavigateUrl="/pagesModules/ComplienceDetail.aspx?Category=19791978" Modal="true" InitialBehaviors="Maximize" RestrictionZoneID="NavigateUrlZone"> </telerik:RadWindow> <asp:Button ID="Button4" Text="open the window" runat="server" OnClientClick="openWinNavigateUrl(); return false;" />