Select the element right before the script tag

How would you select the first input in the code below without editing the DOM (using jQuery if needed)?

<input type="text"/> <!-- The element I want to select -->
<script>
    // Select the input above
</script>
<input type="text"/>

Please note there is an unknown number of inputs and script tags before and after this code sample, thus solutions like $("input:eq(1)") won't work.

The tricky part is to select the input placed right before the script tag from which the current JavaScript is being executed.

No need to ask me why I want to do this either, that's purely for the beauty of it, I want to do it without having to add random ids to my inputs if that's possible.

Edit
Here's why most of the answers won't work: http://jsfiddle.net/2WqfP/