or
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><head id="Head1" runat="server"> <style type="text/css"> html, body, form { height: 100%; padding: 0px; margin: 0px; } </style></head><body style="background-color: #FFFFFF; margin-bottom: 0px; margin-top: 0px; margin-left: 0px; margin-right: 0px;"> <form id="form1" runat="server" > <asp:ContentPlaceHolder ID="WMContentPlaceHolder" runat="server"> </asp:ContentPlaceHolder> </form></body></html><telerik:RadAjaxManager ID="ramMain" runat="server" EnableAJAX="true" EnablePageHeadUpdate="false"> <AjaxSettings> <telerik:AjaxSetting AjaxControlID="RadTreeView1"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="RadSplitter1" LoadingPanelID="ralpMain" /> </UpdatedControls> </telerik:AjaxSetting> </AjaxSettings></telerik:RadAjaxManager><telerik:RadAjaxLoadingPanel ID="ralpMain" runat="server" ></telerik:RadAjaxLoadingPanel> <telerik:RadSplitter ID="RadSplitter1" runat="server" Width="100%" VisibleDuringInit="false" PanesBorderSize="0" ResizeWithParentPane="true" ResizeWithBrowserWindow="true">RadEditor re1 = (RadEditor)FormView_RISummaryDetailsFV.FindControl("RadEditorSummaryDescription_RISummaryDetailsFVEditItemTemplate");Label lab1 = (Label)FormView_RISummaryDetailsFV.FindControl("LabelResumePreviewHeader_RISummaryDetailsFVEditItemTemplate");Label lab2 = (Label)FormView_RISummaryDetailsFV.FindControl("LabelResumePreviewContents_RISummaryDetailsFVEditItemTemplate");re1.Attributes.Add("onKeyUp", "JavaScript:summaryRealTimePreview('" + re1.ClientID + "', '" + lab1.ClientID + "', '" + lab2.ClientID + "');");<script type="text/javascript" > function summaryRealTimePreview(re1_id, lab1_id, lab2_id) { var re1 = $find(re1_id); var lab1 = document.getElementById(lab1_id); var lab2 = document.getElementById(lab2_id); lab1.innerHTML = re1.get_html(); lab2.innerHTML = re1.get_html(); }</script><script language="javascript" type="text/javascript"> function OnClientLoad(editor) { var element = document.all ? editor.get_document().body : editor.get_document(); $telerik.addExternalHandler(element, "keyup", keyUpFunction); } function keyUpFunction() { alert("key up function tripped"); }</script>