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copied!<p>I think your problem is that your <code>$.ajax({...})</code> is being called too early - ie. on document ready <code>$(function (){ ... $.ajax({...}) });</code>, and not after your sliders are changed/selected. You could call your <code>$.ajax({...})</code> on a button click -</p> <pre><code><input id="vote" type="button" value="Vote" /> $("#vote").on('click',function(){ var a= $("#min_inches").val(); var b=$("#max_inches").val(); $.ajax ({ type: "POST", url: "searchrange.php", data: { a : a, b : b }, success: function(option) { alert("voted"); } }); }); </code></pre> <p>so your code could be - </p> <pre><code><script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.8/jquery-ui.min.js"></script> <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/base/jquery-ui.css" type="text/css" /> <script type="text/javascript"> $(function () { $("#slider-range").slider( { range: true, min: 71, max: 109, values: [75, 100], slide: function (event, ui) { $("#size-range").html(Math.floor(ui.values[0] / 12) + "'" + (ui.values[0] % 12) + '" - ' + Math.floor(ui.values[1] / 12) + "'" + (ui.values[1] % 12) + '"'); $("#min_inches").val(ui.values[0]); $("#max_inches").val(ui.values[1]); } }); $("#size-range").html(Math.floor($("#slider-range").slider("values", 0) / 12) + "'" + ($("#slider-range").slider("values", 0) % 12) + '" - ' + Math.floor($("#slider-range").slider("values", 1) / 12) + "'" + ($("#slider-range").slider("values", 1) % 12) + '"'); $("#min_inches").val($("#slider-range").slider("values", 0)); $("#max_inches").val($("#slider-range").slider("values", 1)); $("#vote").on('click',function(){ var a= $("#min_inches").val(); var b=$("#max_inches").val(); $.ajax({ type: "POST", url: "searchrange.php", data: { a: a, b: b }, success: function (option) { alert("voted"); } }); }); }); </script> </code></pre> <p>see this JSFiddle example (using alert in place of $.ajax()) -<a href="http://jsfiddle.net/8JgW6/" rel="nofollow">http://jsfiddle.net/8JgW6/</a></p>

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