how to use multiple jquery-ui sliders as filters

Question

i have this jsfiddle http://jsfiddle.net/danieltulp/gz5gN/

what i want to do is fiter a unordered list on data- properties with about 6 sliders. but for my development i'm just using two

first question: the quality slider works just fine, but when i slide the price slider it sees the minP and maxP variables as objects, why? how can i fix that?

second question: my code is now pritty messy, i have to write code specific to each filter (ie: price, quality, etc), how can i simplify/shorten my code?

Code from fiddle:

Html

<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="stylesheet" type="text/css"o/>
<div class="demo">
    price<br />
    <div id="price"></div>
    quality<br />
    <div id="quality"></div>
    <ul id="products">
        <li data-price="10" data-quality="20"> product - £10 q20</li>
        <li data-price="50" data-quality="40"> product - £50 q40</li>
        <li data-price="100" data-quality="80"> product - £100 q80</li>
        <li data-price="150" data-quality="30"> product - £150 q30</li>
        <li data-price="200" data-quality="40"> product - £200 q40</li>
    </ul>
</div>

Javascript

function showProducts(minP, maxP, minQ, maxQ) {
    $("#products li").filter(function() {
        var price = parseInt($(this).data("price"), 10);
        var quality = parseInt($(this).data("quality"), 10);
        if(price >= minP && price <= maxP && quality >= minQ && quality <= maxQ){
             $(this).show();
        } else {
             $(this).hide();
        }
    });
}

$(function() {
    var options = {
        range: true,
        min: 0,
        max: 250,
        values: [0, 250],
        slide: function(event, ui) {
            if(event.target.id = "price"){
                var minP = ui.values[0],
                      maxP = ui.values[1],
                      minQ = $("#quality").slider("values", 0),
                      maxQ = $("#quality").slider("values", 1);
             }
            if(event.target.id = "quality"){
                var minP = $("#price").slider("values", 0),
                      maxP = $("#price").slider("values", 1),
                       minQ = ui.values[0],
                       maxQ = ui.values[1];
              }
              alert(minP +", "+ maxP +", "+ minQ +", "+ maxQ);
              showProducts(minP, maxP, minQ, maxQ);
          }
      };

     $("#price").slider(options);
     $("#quality").slider(options);
  });

Edit: The first problem with the min max variables being objects also happens to the quality slider if I move the if statement of quality above the one for price. Price values are then correct. So it appears to be a problem with the if statements in the slide function.

Answer 1

it appears there is a very handy jquery plugin called filter.js

demo: http://jiren.github.com/filter.js/filterjs.html

github: https://github.com/jiren/filter.js

tutorial: http://blog.joshsoftware.com/2011/09/28/filter-js-client-side-search-filtering-using-json-and-jquery/