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    <p>Currently it seems you're missing the <code>imgover</code> class on your images and their <code>src</code> is wrong (<code>_e</code> instead of <code>_s</code>), so the hover/swap doesn't work at all. </p> <p>Just to get going, I fixed that by executing</p> <pre><code>$('#photos img').attr('src','images/iso_s.jpg').addClass('imgover'); </code></pre> <p>in the console first. </p> <p>Then re-apply the image-swapping code, as modified here:</p> <pre><code>$(function(){ $('.imgover').each(function() { var std = $(this).attr("src"); var hover = std.replace("_s", "_o"); $(this).clone().insertAfter(this).attr('src', hover).removeClass('imgover').siblings().css({ position:'absolute' }); var $img = $(this); function isActive(){ // Regex for extracting the ID number for the image group type var reg = /^(.*\s)?ff-item-type-(\d+)[^\d]*.*/; var classes = $img.closest('li').attr('class'); var id = reg.exec(classes)[2]; console.log('Checking image with group id',id); var found = $('#select-type-all, #select-type-'+id).filter(':checked').length; console.log('Matching and checked input count:', found); return found&gt;0; } $(this).mouseenter(function() { if (isActive()){ $(this).stop().fadeTo(200, 0); } }).mouseleave(function() { $(this).stop().fadeTo(200, 1); }); }); }); </code></pre> <p>This appears to work. Note though that for some reason the b/w pictures are scale too big, probably a problem with your CSS. Applying the following fixes that well enough to see the swapping working as intended:</p> <pre><code>$('#photos img').css('width','auto !important') </code></pre> <p>The only change I made to the swapping code was adding the <code>isActive</code>function add checking that before performing the swap.</p> <p><code>isActive</code> extracts the i image group id from the class of its parent <code>&lt;li&gt;</code>, and then checks if the corresponding input <code>#select-type-[id]</code> (or the <code>#select-type-all</code>-input) is checked.</p> <hr> <p>Ooops, I see now that you wanted the swapping to be triggered by the filtering directly. To do that, try this instead:</p> <pre><code>$(function(){ $('#photos img').attr('src','images/iso_s.jpg').addClass('imgover'); $('#photos img').css('width','auto !important') $('.imgover').each(function() { var std = $(this).attr("src"); var hover = std.replace("_s", "_o"); $(this).clone().insertAfter(this).attr('src', hover).removeClass('imgover').siblings().css({ position:'absolute' }); var $img = $(this); function isActive(){ // Regex for extracting the ID number for the image group type var reg = /^(.*\s)?ff-item-type-(\d+)[^\d]*.*/; var classes = $img.closest('li').attr('class'); var id = reg.exec(classes)[2]; console.log('Checking image with group id',id); var found = $('#select-type-'+id).filter(':checked').length; console.log('Matching and checked input count:', found); return found&gt;0; } $('#container input').change(function(){ if (isActive()){ $img.stop().fadeTo(200, 0); } else { $img.stop().fadeTo(200, 1); } }); }); }); </code></pre> <p>Not the most effective or elegant solution (binding an <code>onchange</code> event for each image), but it gets the job done.</p>
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    1. POModify jQuery javascript to trigger on :checked instead of :hover — image swap
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    1. COHmm the code doesn't seem to be working. I updated my demo site. The JavaScript wasn't injecting the CSS for `#photos img` so I put it in there manually. Also I changed the image file names to the correct name. Any ideas?
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    2. COIt doesn't have any effect now because it is running before the rest of the document is loaded, so `$('.imgover')` doesn't match anything. Wrap it in `$(function(){...});` to delay it until after the DOM has finished loading. I'll update the post to illustrate.
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    3. COAh thank you! Now I'm trying to figure out the weird scaling of the images. The colored ones are scaled slightly vertical. Also, there is an `img` being injected into the anchor tags so there are now two images in every anchor tag. Not sure if that was intended. If it was, is it possible to only have one `img` per anchor? And just swap the `_s` for `_o`? For some reason on page load, some of the images start out colored. Also, I think some of the CSS rules are causing the fluid width of the grid to go out of wack: http://cl.ly/2e222D3v3F151R2Y1o1h
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