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    <p>You can set up two ImageStyles, both with the same dimensions. </p> <p>One is the regular, colour image, the other the filtered one. The settings should be the same (cropping etc.), except that one has the desaturation filter. You can call one setting 'logo-thumb-normal' and one 'logo-thumb-filtered'</p> <p>You should now have two output images which are the same except for the filtering, and they should have the same file name, though they will be in different folders. </p> <p>Set your content type Image field to use 'logo-thumb-filtered.'</p> <p>So, when you upload an image within a content type, that should generate two files, one for each setting:</p> <p><code>/sites/default/files/styles/logo-thumb-normal/public/field/image/image.jpg</code> and <code>/sites/default/files/styles/logo-thumb-filtered/public/field/image/image.jpg</code></p> <p>You can refer to these two images manually, as Spudley suggests, but even easier may be to use jQuery to swap the images out on hover (here's a simple example: <a href="http://jsfiddle.net/vSUkv/1/" rel="nofollow">http://jsfiddle.net/vSUkv/1/</a>):</p> <pre><code>$('.image1').hover( function () { src = $(this).attr('src'); $(this).attr('src', src.replace('filtered', 'normal')); }, function () { $(this).attr('src', src.replace('normal', 'filtered')); } ); </code></pre> <p><strong>EDIT:</strong></p> <p>To include jQuery in Drupal 7:</p> <p>To add the script above, you can:</p> <ul> <li><p>Add a custom JavaScript file to your theme, if you haven't already, by adding the line <code>scripts[] js/custom.js</code> to your theme's <code>info</code> file.</p></li> <li><p>Create the <code>js</code> folder inside your theme, and create the <code>custom.js</code> file inside that folder.</p></li> <li><p>Add the following code to your <code>custom.js</code> file: </p></li> </ul> <hr> <pre><code>// We define a function that takes one parameter named $. (function ($) { // Store our function as a property of Drupal.behaviors Drupal.behaviors.imageSwap = { attach: function (context, settings) { $('.hplogoclient a img').hover( function () { src = $(this).attr('src'); $(this).attr('src', src.replace('filtered', 'normal')); }, function () { $(this).attr('src', src.replace('normal', 'filtered')); } ); } } }(jQuery)); </code></pre> <ul> <li>Clear the cache and check again. See <a href="http://drupal.org/node/171213" rel="nofollow">http://drupal.org/node/171213</a> for details.</li> </ul>
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    1. CO@Drupal guy - does this solution work for you?
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    2. COHi @g_thom ! Thanks for super detailed post! it works great at jsfiddle.net example, even when I replace my actual paths and class names. but it just doesnt work in my actual page :( maybe conflict with a different script at the page! trying to solve! it gives this error https://img.skitch.com/20110801-85wdfigmu6dgtgrabd2ks3ij45.png
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    3. COHi @Drupal guy - I've updated my answer to go through how I added the jQuery function successfully. Let me know if anything is unclear.
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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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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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