function OnClientCommandExecuting(editor, args)
{
    var name = args.get_name();
    var val = args.get_value();
    if (name == "<img src='/RAD/Icons/1.gif' />")//"Emoticons")
    {
        editor.pasteHtml("<img src='" + val + "'>");        
        //Cancel the further execution of the command as such a command does not exist in the editor command list
        args.set_cancel(true); 
    }

    if (name == "youtube") {
        var tbx = prompt("Please enter YouTube Embed", "");
        if (tbx != null && tbx != "") {
            editor.pasteHtml(tbx);
        }
        
        args.set_cancel(true); 
    }
    
    if (name == "DynamicDropdown")
    {
        editor.pasteHtml("<div style='width:100px;background-color:#fafafa;border:1px dashed #aaaaaa;'>" + val + "</div>");       
        //Cancel the further execution of the command as such a command does not exist in the editor command list
        args.set_cancel(true); 
    }
}