I'm using a RadMenu inside a pane in a splitter and the selections post to a content pane. On page_load code behind I am highlighting the menuitem to select it and displaying that page in the content pane. This is fine. Now I need to unhighlight the menuitem when another menuitem is selected. I tried doing this on opening a new page in the content window in the client javascript however I can't find any methods or properties that will un-highlight the menuitem. I can disable and enable it but it is still highlighted. Surely this is not an uncommon practice to initialize a menuitem as selected on page load but seems to be such a chore to go about it.