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    <p>The inner function creates a <a href="https://stackoverflow.com/questions/tagged/javascript+closure">closure</a>, capturing the variables in the scope it is defined in. So you already have what you're asking for...</p> <p>...whether that's a good idea or not is another matter. </p> <p>For starters, you're not actually <em>modifying</em> the value in the code you listed - you're assigning <code>$current_page</code> the same value it was already initialized with. </p> <p>But assuming you just omitted the code that you would normally use to pick a <em>different</em> value for <code>$current_page</code>, you need to ask yourself: is this really even <em>necessary</em>? You're performing a lookup based on an element ID and caching a reference to that element in a variable without knowing if or when you'll actually need it again. At best, this results in a potentially-unnecessary lookup; at worst, it can result in a memory leak. Why not just keep track of the ID itself, and look up the element when and where you actually need it? Don't worry about performance until you actually encounter a performance <em>problem</em>... or you may find that your premature optimization has caused more problems than it solves.</p> <p>Same goes for <code>$home_page</code>, <code>$portfolio_page</code> and <code>$about_page</code> - you're making your page load (slightly) more slowly on the off-chance that you'll need a reference to those elements later on, when you could just as well look them up as-needed.</p>
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    1. POUpdate variables inside the jQuery $(document).ready() base scope?
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    1. COI agree. This is just a short example to show the scope issue, not the show where it would benefit from performance. (and I did omit another page change, thanks!) I'm going to edit it show a more in-depth example. The example does not update the $current_page variable (that is, if it was different then what was originally set in the document.ready scope. I'm trying to find a way (regardless of people's comments about why) to update the variable in it's original scope, without resulting to going all the way down to global, just updating it in the document.ready scope. Thank your your help.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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