Sending value from JavaScript to PHP via ajax OnUpDtae -


i trying send value 'idselected' javascript update php variable using onupdate (when user clicks button). javascript gets values magictoolbox.com image tool , when set alert value shown correctly within javascript bit works fine.

i can not seem able php variable value change onupdate when use action (button press) has value.

<script type="text/javascript"> var mzoptions = {}; mzoptions = {     onupdate: function() {       jquery('.magiczoom').next().html(jquery(arguments[2]).attr('title')) ;       $idselected = jquery(arguments[2]).attr('data-product-id') ;           $.ajax({             url: "http://malonef.truska.co.uk/product/18",               type: "post",              data: { idselected: $idselected } ;             });         }     } ; </script>

and php

<a  id="moodboxclick" data-id="<?php echo $_post['idselected'] ; ?>">     <button type="button" class="btn btn-primary btn_moodboard">add colour moodboard</button> </a>

in addition how set value of url current page - can use php 

 $_server['remote_addr']
or need passed in show how. ## on end changes (18 in case)


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