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    <p>A way to do this is to clone all the <code>&lt;img&gt;</code> nodes you want, put them inside <code>&lt;div&gt;</code>s and then use CSS's <a href="https://developer.mozilla.org/en-US/docs/CSS/%3ahover" rel="nofollow"><code>:hover</code></a> to do the rest of the work for you. <a href="http://jsfiddle.net/BysCN/" rel="nofollow"><strong>example fiddle</strong></a>.<br> My code will work for as many <code>&lt;img&gt;</code>s as you like, anywhere in the document and does not require fixed sizes of parent nodes.<br> You may need to modify your CSS or the class names I've chosen if other styles aren't as you expected due to the changes to HTML structure by the JavaScript (see "Resulting HTML" below).</p> <pre><code>// JavaScript window.onload = function () { // when document has loaded, consider `window.addEventListener('load', /* code */, false);` in real world usage var elm = document.querySelectorAll('img.rollover'), // get all &lt;img&gt;s with class "rollover" i = elm.length, d; while (--i &gt;= 0) { // put each one and a clone into a &lt;div&gt; where it was d = elm[i].parentNode.insertBefore(document.createElement('div'), elm[i]); d.className = 'rollover'; elm[i].className = (' '+elm[i].className+' ') // set class' .replace(/ rollover /g, ' ') .slice(1, -1); d.appendChild(elm[i]); d.appendChild(elm[i].cloneNode()).className += ' rollover_big'; // I did clone here to save needing an extra variable elm[i].className += ' rollover_small'; } }; /* CSS */ div.rollover {position: relative; display: block;} /* relative to allow for abs. positioning of big image */ div.rollover img.rollover_small {width: 24px;} div.rollover img.rollover_big { /* position over small image*/ width: 48px; display: none; position: absolute; top: 0px; } div.rollover:hover img.rollover_small {visibility: hidden;} /* visibility to hold space*/ div.rollover:hover img.rollover_big {display: block;} /* show bigger node*/ &lt;!-- HTML --&gt; &lt;table&gt; &lt;tr&gt; &lt;td colspan=2&gt;&lt;a href="contactdetail.php"&gt;&lt;img src="http://womeninbiznetwork.com/wp-content/uploads/2011/07/logo-google.thumbnail.gif" class="rollover"/&gt;&lt;/a&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;Here is text&lt;/td&gt; &lt;/tr&gt; &lt;!-- etc. --&gt; &lt;/table&gt; &lt;!-- Resulting HTML after load event --&gt; &lt;table&gt; &lt;tr&gt; &lt;td colspan=2&gt;&lt;a href="contactdetail.php"&gt; &lt;div class="rollover"&gt; &lt;img src="http://womeninbiznetwork.com/wp-content/uploads/2011/07/logo-google.thumbnail.gif" class="rollover_small"/&gt; &lt;img src="http://womeninbiznetwork.com/wp-content/uploads/2011/07/logo-google.thumbnail.gif" class="rollover_big"/&gt; &lt;/div&gt; &lt;/a&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;Here is text&lt;/td&gt; &lt;/tr&gt; &lt;!-- etc. --&gt; &lt;/table&gt; </code></pre>
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    1. POjavascript/css: Make image expand up and to left on rollover effect
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    1. USPaul S.
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    1. COIs there a way to make the image expand up and to the left? I think this would look better than having it expand dowwnard
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    2. CO@user1904273 yep, in `div.rollover img.rollover_big` (css) set `top: -12px; left: -12px;` or however you want it.
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    3. COYou can even position with `bottom: 0; right: 0;` or percentages. The image is in it's own block element so any absolute positioning is calculated from that and not from the edges of the document.
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