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    copied!<h2>HTML</h2> <pre><code>&lt;div id="clonedInput1" class="clonedInput"&gt; &lt;div&gt; &lt;label for="txtCategory" class=""&gt;Learning category &lt;span class="requiredField"&gt;*&lt;/span&gt;&lt;/label&gt; &lt;select class="" name="txtCategory[]" id="category1"&gt; &lt;option value=""&gt;Please select&lt;/option&gt; &lt;/select&gt; &lt;/div&gt; &lt;div&gt; &lt;label for="txtSubCategory" class=""&gt;Sub-category &lt;span class="requiredField"&gt;*&lt;/span&gt;&lt;/label&gt; &lt;select class="" name="txtSubCategory[]" id="subcategory1"&gt; &lt;option value=""&gt;Please select category&lt;/option&gt; &lt;/select&gt; &lt;/div&gt; &lt;div&gt; &lt;label for="txtSubSubCategory"&gt;Sub-sub-category &lt;span class="requiredField"&gt;*&lt;/span&gt;&lt;/label&gt; &lt;select name="txtSubSubCategory[]" id="subsubcategory1"&gt; &lt;option value=""&gt;Please select sub-category&lt;/option&gt; &lt;/select&gt; &lt;/div&gt; &lt;div class="actions"&gt; &lt;button class="clone"&gt;Clone&lt;/button&gt; &lt;button class="remove"&gt;Remove&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <h2>JavaScript - Jquery v1.7 and earlier</h2> <pre><code>var regex = /^(.+?)(\d+)$/i; var cloneIndex = $(".clonedInput").length; $("button.clone").live("click", function(){ $(this).parents(".clonedInput").clone() .appendTo("body") .attr("id", "clonedInput" + cloneIndex) .find("*").each(function() { var id = this.id || ""; var match = id.match(regex) || []; if (match.length == 3) { this.id = match[1] + (cloneIndex); } }); cloneIndex++; }); </code></pre> <p><s>There is only one silly part :) <code>.attr("id", "clonedInput" + $(".clonedInput").length)</code> but it works ;)</s></p> <h2>JAvascript - JQuery recent (supporting .on())</h2> <pre><code>var regex = /^(.+?)(\d+)$/i; var cloneIndex = $(".clonedInput").length; function clone(){ $(this).parents(".clonedInput").clone() .appendTo("body") .attr("id", "clonedInput" + cloneIndex) .find("*") .each(function() { var id = this.id || ""; var match = id.match(regex) || []; if (match.length == 3) { this.id = match[1] + (cloneIndex); } }) .on('click', 'button.clone', clone) .on('click', 'button.remove', remove); cloneIndex++; } function remove(){ $(this).parents(".clonedInput").remove(); } $("button.clone").on("click", clone); $("button.remove").on("click", remove); </code></pre> <p>working example <a href="http://jsfiddle.net/mjaric/tfFLt/" rel="noreferrer">here</a></p>
 

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