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    <p>You have to check that the nodeType == 1.</p> <pre><code>if (el.nodeType === 1) { return el; } </code></pre> <p>I wrote a small DOM traversing class for ya (mostly copied from MooTools). Download here: <a href="http://gist.github.com/41440" rel="nofollow noreferrer">http://gist.github.com/41440</a></p> <pre><code>DOM = function () { function get(id) { if (id &amp;&amp; typeof id === 'string') { id = document.getElementById(id); } return id || null; } function walk(element, tag, walk, start, all) { var el = get(element)[start || walk], elements = all ? [] : null; while (el) { if (el.nodeType === 1 &amp;&amp; (!tag || el.tagName.toLowerCase() === tag)) { if (!all) { return el; } elements.push(el); } el = el[walk]; } return elements; } return { // Get the element by its id get: get, walk: walk, // Returns the previousSibling of the Element (excluding text nodes). getPrevious: function (el, tag) { return walk(el, tag, 'previousSibling'); }, // Like getPrevious, but returns a collection of all the matched previousSiblings. getAllPrevious: function (el, tag) { return walk(el, tag, 'previousSibling', null, true); }, // As getPrevious, but tries to find the nextSibling (excluding text nodes). getNext: function (el, tag) { return walk(el, tag, 'nextSibling'); }, // Like getNext, but returns a collection of all the matched nextSiblings. getAllNext: function (el, tag) { return walk(el, tag, 'nextSibling', null, true); }, // Works as getPrevious, but tries to find the firstChild (excluding text nodes). getFirst: function (el, tag) { return walk(el, tag, 'nextSibling', 'firstChild'); }, // Works as getPrevious, but tries to find the lastChild. getLast: function (el, tag) { return walk(el, tag, 'previousSibling', 'lastChild'); }, // Works as getPrevious, but tries to find the parentNode. getParent: function (el, tag) { return walk(el, tag, 'parentNode'); }, // Like getParent, but returns a collection of all the matched parentNodes up the tree. getParents: function (el, tag) { return walk(el, tag, 'parentNode', null, true); }, // Returns all the Element's children (excluding text nodes). getChildren: function (el, tag) { return walk(el, tag, 'nextSibling', 'firstChild', true); }, // Removes the Element from the DOM. dispose: function (el) { el = get(el); return (el.parentNode) ? el.parentNode.removeChild(el) : el; } }; }(); // Now you can do: DOM.getFirst("parent") // first child // or DOM.getFirst("parent", "p") // first p tag child // or var el = DOM.get("parent") // get element by id DOM.getFirst(el) // first child </code></pre>
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    1. POHow to handle Firefox inserting text elements between tags
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    1. USDavid Brockman
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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.

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