RadEditor for ASP.NET AJAX
Contents
RadControls for ASP.NET AJAX

The example demonstrates how to attach an ondblclick (on double click) event handler to the editor content area, check whether the selection is an A tag and if it is to open it in a new window:

CopyASPX
<script type="text/javascript">
    function OnClientLoad(editor, args)
    {
        editor.attachEventHandler("ondblclick", function (e)
        {
            var sel = editor.getSelection().getParentElement(); //get the currently selected element
            var href = null;
            if (sel.tagName == "A")
            {
                href = sel.href; //get the href value of the selected link
                window.open(href, null, "height=500,width=500,status=no,toolbar=no,menubar=no,location=no");
                return false;
            }
        }
 );
    }
</script>
<asp:ScriptManager id="ScriptManager1" runat="server"/>
<telerik:radeditor runat="server" ID="RadEditor2"
OnClientLoad="OnClientLoad" >
   <Content>
       Sample Content <a href="http://www.telerik.com">Open Telerik.com</a> Sample Content  
   </Content>
</telerik:radeditor>

We can further enhance the example by programmatically setting a title attribute with "Doubleclick to open the link in a new window" value to all links in the content area. You can do that with the following code:

CopyJavaScript
    var link = editor.get_document().getElementsByTagName("A"); //get a reference to the links in the content area of RadEditor
    for (var i = 0; i < link.length; i++)
    {
        link[i].setAttribute("title", "Double click to open the link in a new window");
    }

Here is the complete solution:

CopyASPX
<script type="text/javascript">
    function OnClientLoad(editor, args)
    {
        var link = editor.get_document().getElementsByTagName("A"); //get a reference to the links in the content area of RadEditor
        for (var i = 0; i < link.length; ilink[isetAttribute("title", "Doubleclick toopen thelink ina newwindow");
        }
        editor.attachEventHandler"ondblclick", functione)
        {
            varsel = editor.getSelectiongetParentElement(); //getthe currentlyselected elementvar href=null;
            ifsel.tagName == "A")
            {
                href = sel.href; //get the href value of the selected link
                window.open(href, null, "height=500,width=500,status=no,toolbar=no,menubar=no,location=no");
                returnfalse;
            }
        }
);
    }
</scriptasp:ScriptManagerid="ScriptManager" runat="server"/>
<telerik:radeditor runat="server" ID="RadEditor1"
OnClientLoad="OnClientLoad" >
  <Content>
       Sample Content <a href="httpwww.telerik.com">Open Telerik.com</a> Sample Content  
  </Content>
</telerik:radeditor>