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    <p>A basic image pool should allow you to recycle img elements for re-use. Since you don't know how many images there will be total ahead of time, just have the pool size expand as necessary.</p> <p>Something like this should work:</p> <pre><code> function getImg( id, src, alt ) { var pool = document.getElementById( 'image_pool' ); var img = ( pool.children.length &gt; 0 ) ? pool.removeChild( pool.children[0] ) : document.createElement( 'img' ); img.id = id; img.src = src; img.alt = alt; return img; } function recycleImg( id ) { var img = document.getElementById( id ); document.getElementById( 'image_pool' ).appendChild( img.parentNode.removeChild( img ) ); } </code></pre> <p>Place a hidden "image_pool" container on your page somewhere, to hide the recycled images between usage:</p> <pre><code>&lt;div id="image_pool" style="display:none;"&gt;&lt;/div&gt; </code></pre> <p>Then any time you need a new img element, call:</p> <pre><code>document.getElementById( 'some_element_id' ).appendChild( getImg( 'my_image_id', 'images/hello.gif', 'alt_text' ) ); </code></pre> <p>And when you are done with it:</p> <pre><code>recycleImg( 'my_image_id' ); </code></pre> <hr> <p><strong>jQuery alternative</strong></p> <pre><code> function getImg( id, src, alt ) { var img; if( $("#image_pool").children().length &gt; 0 ) { return $("#image_pool img:first-child").attr( { 'id': id, 'src': src, 'alt': alt } ).detach(); } return $( "&lt;img /&gt;'" ).attr( { 'id': id, 'src': src, 'alt': alt } ); } function recycleImg( id ) { $( "#" + id ).detach().appendTo( $("#image_pool") ); } </code></pre> <p>When you need a new img element:</p> <pre><code>getImg( 'my_image_id', 'images/hello.gif', 'alt_text' ).appendTo( $( "#some_element_id" ) ); </code></pre> <p><em>(recycling works the same as above)</em></p>
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    1. POHow can I prevent memory leaks when removing images in the DOM?
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