select-box on click? Hide first item when selectbox is opened, show it when closed?

I have this …

<select class="wr-dropdown">
    <option selected="" value="Navigation">Navigation</option>
    <option value="something">Something</option>
    <option value="something">Something</option>

When clicking the dropdown I'd like to hide the first option "Navigation" … when a selection is made or the dropdown is closed I want to show it again.

How do I do that?


    $(this).prepend("<option selected='selected'>Navigation</option>");

This works.

Here's the fiddle:

If you do not like the way the second option jumps into select box with Andrews Method, which is a great example by the way. You could do something like this:


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