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  1. POadd class to span element with onClick javascript
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    <p>I'm searching hours for an solution and found some answers, but not a quite fitting one.</p> <p>I have several <code>&lt;span id="same-id-for-all-spans"&gt;&lt;/span&gt;</code> elements with each of them including one <code>&lt;img&gt;</code> element. Now I want to create a print template, to only print those elements which have a specific <strong>class</strong> added to it.</p> <p>The question is, how can I add a <strong>class</strong> to a span by clicking on it. This way I want to "mark" several spans which then have an underlying print-css style to only print the ones with the specific*<em>class</em>*. <strong>Important:</strong> It should be possible to click (add class) and reclick (delete class) for single spans.</p> <p>Thank you so much. Best Regards Mazey</p> <hr> <p>its a wordpress return for all the spans, so same id. at the moment I have this js included:</p> <pre><code>&lt;script type="text/javascript"&gt; function changeid () { var e = document.getElementById("nonprintable"); e.id = "printable"; } &lt;/script&gt; </code></pre> <hr> <p>and the wordpress code looks like this:</p> <pre><code>&lt;?php $args = array('post_type' =&gt; 'attachment', 'post_parent' =&gt; $post-&gt;ID, 'orderby' =&gt; 'menu_order', 'order' =&gt; 'ASC'); $attachments = get_children($args); foreach ( $attachments as $attachment_id =&gt; $attachment ) { echo '&lt;span id="nonprintable" onClick="changeid()" &gt;'; echo wp_get_attachment_image( $attachment-&gt;ID, 'large' ); echo '&lt;/span&gt;'; } ?&gt; </code></pre> <hr> <p>Right now when I click on a span I see that it changes the id. But it changes it just top to bottom with every click on a span and not on a specific span I click. </p>
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