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    <p>How about creating an <code>&lt;input type="hidden"&gt;</code> (with no <code>name</code> or outside the form so it's not submitted) in which you store an encoded list of extra fields to add and their values? While the browser won't remember newly-added fields on ‘back’, it <em>will</em> remember the values of hidden fields that were in the form from the start.</p> <p>Here's an example that saves the extra fields on document unload and retrieves them on ready:</p> <pre><code>&lt;input type="hidden" id="remembertexts" /&gt; &lt;form action="http://www.google.com/" method="get"&gt; &lt;div id="texts"&gt; &lt;input type="text" name="text[]" value="" /&gt; &lt;/div&gt; &lt;div&gt; &lt;input type="submit" /&gt; &lt;input type="button" id="addtext" value="+" /&gt; &lt;/div&gt; &lt;/form&gt; &lt;script type="text/javascript"&gt; // Add new field on button press // $('#addtext').click(function() { addInput(''); }); function addInput(text) { $('#texts input').eq(0).clone().val(text).appendTo('#texts'); }; // Store dynamic values in hidden field on leaving // $(window).bind('beforeunload', function() { var vals= []; $('#texts input').each(function() { vals.push(encodeURIComponent(this.value)); }); $('#remembertexts').val(vals.join(';')); }); // Retrieve dynamic values on returning to page // $(function() { var extratexts= $('#remembertexts').val().split(';').slice(1); $.each(extratexts, function() { addInput(decodeURIComponent(this)); }); }); &lt;/script&gt; </code></pre> <p>Notes:</p> <ul> <li><p>You can use <code>form.onsubmit</code> instead of <code>window.onbeforeunload</code> if you only need it to remember values over a submission. <code>onunload</code> doesn't work as some browsers will already have stored the old form values before that event occurs.</p></li> <li><p>In Firefox the position of the hidden input is important. For some reason, if you put it below the dynamically-added fields, Firefox gets confused about which input it is and fails to remember the value.</p></li> <li><p>This example doesn't work in Opera. It can be made to work in Opera, but it's a pain. Opera's calling of load and unload events is inconsistent so you have to use onsubmit instead, or setting the hidden field on a polling interval, or something. Worse, when Opera remembers previous form-field values, it actually doesn't fill them in until <em>after</em> onload has fired! This already causes many, many form-scripting problems. You can work around that by putting a small timeout in your onload to wait until the form values have gone in if you need Opera compatibility.</p></li> </ul>
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    1. POBack Button Handle A Dynamic Form
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    1. COYou may trip over this: http://stackoverflow.com/questions/1274138/jquery-issue-with-live-events-a-form-and-the-back-button
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    2. COThis is totally genious! No need for sessions, AJAX, cookies and all that stuff! Great!
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