Checkbox for search in jquery

thank you

        <script type="text/javascript"> 
        
        // start user setings
        var maxColumn = 2;    // max cells in a row  
        var range = 3;    // range of num links to show
        // end user setings
        
        var rowsPerPage = 0;
        var currentpage = 0;
        var maxPrice = 0;
        var minPrice = 0;
        var sortBy = '';
        var sortOrder = 0;  
       
       // the products information array                            
       var products = [
                     {"id":"1","category":"Apple","price":2860,"image":"images/Apple-iPhone-4.gif","title":"Apple iPhone 4","os":"android"} 
                     , { "id": "2", "category": "BlackBerry", "price": 450, "image": "images/BlackBerry-9780-Bold.gif", "title": "BlackBerry 9780 Bold", "os": "android" }
                     , { "id": "12", "category": "BlackBerry", "price": 520, "image": "images/BlackBerry-Torch-9800.gif", "title": "BlackBerry Torch 9800", "os": "android" }
                     , { "id": "26", "category": "HTC", "price": 1850, "image": "images/HTC-Desire-S.gif", "title": "HTC Desire S", "os": "android" }
                     ,{"id":"50","category":"HTC","price":600,"image":"images/HTC-HD7.gif","title":"HTC HD7"} 
                     ,{"id":"21","category":"HTC","price":2400,"image":"images/HTC-Incredible-S.gif","title":"HTC Incredible S"} 
                     ,{"id":"11","category":"HTC","price":2500,"image":"images/HTC-Sensation.gif","title":"HTC Sensation"} 
                     ,{"id":"3","category":"HTC","price":100,"image":"images/HTC-Wildfire.gif","title":"HTC Wildfire"} 
                     ,{"id":"6","category":"Motorola","price":2460,"image":"images/Motorola-Atrix-4G.gif","title":"Motorola Atrix 4G"} 
                     ,{"id":"14","category":"Motorola","price":100,"image":"images/Motorola-DEFY.gif","title":"Motorola DEFY"} 
                     ,{"id":"15","category":"Nokia","price":1200,"image":"images/Nokia-C7.gif","title":"Nokia C7"} 
                     ,{"id":"60","category":"Nokia","price":1700,"image":"images/Nokia-N8.gif","title":"Nokia N8"} 
                     ,{"id":"70","category":"Nokia","price":2000,"image":"images/Nokia-X6.gif","title":"Nokia X6"} 
                     ,{"id":"45","category":"Samsung","price":1800,"image":"images/Samsung-I9000-Galaxy-S.gif","title":"Samsung I9000 Galaxy S"} 
                     ,{"id":"23","category":"Samsung","price":2900,"image":"images/samsung-I9100-galaxy-S2.gif","title":"samsung I9100 galaxy S2"} 
                     ,{"id":"17","category":"Samsung","price":1300,"image":"images/Samsung-S5830-Galaxy-Ace.gif","title":"Samsung S5830 Galaxy Ace"} 
                     ,{"id":"99","category":"Sony-Ericsson","price":1400,"image":"images/Sony-Ericsson-XPERIA-X10.gif","title":"Sony Ericsson XPERIA X10"} 
                     ];

                                 
   function setProducts(){   
        sortBy = sortBy?sortBy:$('#product_sort').val() ;
        rowsPerPage = rowsPerPage?rowsPerPage:$('.product_pages button:first').html() ;
        desc = sortOrder>0?true:false; 
        currentpage = currentpage>0?currentpage:1; // if current page is less than first page...
        var totalLoop = rowsPerPage;
        var loop = 0; 
        var countCellData = 0; 
        var offset = 0;    
        // empty content  
        $('#product_show').html(' '); 
        // set select boxes to there selected as the var value
        $('#product_order').val(sortOrder);
        $('#product_sort').val(sortBy);
                             
        var filterdProducts = [];  // displayed products array
        var key = 0;
        // if needed price range filter
        if(!minPrice && !maxPrice){
            filterdProducts = products;
        } else{
            $.each(products, function(i, object) {   
                var curentPrice = parseFloat(object.price); 
                var priceMinOk = true;
                var priceMaxOk = true;
                // filter results match the price range
                if(maxPrice || minPrice){
                    if(maxPrice && maxPrice<curentPrice){
                        priceMaxOk = false;
                    }
                    if(minPrice && minPrice>curentPrice){
                        priceMinOk = false;
                    }
                }  
                //  loop over list and get only related to new array
                 if( priceMinOk && priceMaxOk ){  
                    filterdProducts[key] = object;                  
                    key++;
                    
                 }  
                  
            });
        } 
        
        // get the amount of results
        var totalResults = filterdProducts.length; 
        if(totalResults>0){
            // if there are results - set selected order
                filterdProducts.sort(function(a, b){
                    var a1= a[sortBy], b1= b[sortBy];
                    if(a1== b1){ return 0;}
                    if(desc){
                        return (a1 > b1) ? -1 : (a1 < b1) ? 1 : 0;
                    }else{
                       return a1> b1? 1: -1; 
                    }  
                });
        }
       // checkbox true
       

        // show the amount of results 
        $('.product_results').html(totalResults);
         /****** start build pagination links ******/
        var totalpages = Math.ceil(totalResults/ rowsPerPage) ; // calculate the total pages 
         
        if(totalpages>1){ 
                // fix displayed page number if its biger then exist
                if (currentpage > totalpages) {
                   // set current page to last page
                   currentpage = totalpages;
                } 
                // set the offset of the list, based on current page 
                offset = (currentpage - 1) * rowsPerPage;  
 
                var pagination = '';
                var lastPage = 0;
                // set the min page of the list, based on the range 
                var minPage = parseFloat(currentpage) - parseFloat(range);
                minPage = minPage>0?minPage:1;
                // if not page 1, don't show back links
                if (currentpage > 1) {  
                   // get previous page num  
                   pagination += '<button type="button" name="'+(currentpage - 1)+'" class="product_button" title="◄Previous" >◄Previous<\/button>';
                   // show page 1 only if the min page isn`t page 1 (prevent page 1 to show twice)  
                   if(minPage>1){
                        pagination += '<button type="button" name="1" class="product_button" title="1" >1<\/button>';  
                   }                 
                }  
                     
                // loop to show links to range of pages around current page
                for (var x = minPage; x <= (currentpage + range) ; x++) {  
                   // validate page number 
                   if (x <= totalpages) { 
                      lastPage = x;  
                      // if this is current page set its value to 0 (prevent click) and set class as selected
                      if (x == currentpage) {  
                         pagination += '<button type="button" name="0" class="product_button_selected" title="'+x+'" >'+x+'<\/button>';
                      } else {                            
                         pagination += '<button type="button" name="'+x+'" class="product_button" title="'+x+'" >'+x+'<\/button>';
                      } 
                   } 
                } 
                                  
                // if not on last page, show forward and last page links        
                if (currentpage != totalpages) {
                   // get next page 
                    var nextPage = parseFloat(currentpage) + 1;
                    if(lastPage<totalpages){
                        // show page last page only if the min page isn`t last page (prevent page 1 to show twice)  
                        pagination += '<button type="button" name="'+totalpages+'" class="product_button" title="'+totalpages+'" >'+totalpages+'<\/button>'; 
                    }       
                    pagination += '<button type="button" name="'+nextPage+'" class="product_button" title="Next►" >Next►<\/button>';    
                } 
                // update the html
                $('.product_pagination').html(pagination);  
        }else{
            // if no pages or just one page dont show pagination
            $('.product_pagination').html('<button type="button" name="0" class="product_button_selected" title="1" >1<\/button>');
        }
        var offsetEnd = parseFloat(rowsPerPage) + parseFloat(offset);        
        /****** end build pagination links ******/
        
        // build cells content
        var cell = '<table border="0" cellpadding="2" cellspacing="0" width="100%" id="product_table">';
        cell += '<tr>'; 
        
        // get the keys is in the display pagination range
        var pageProducts = filterdProducts.slice(offset,offsetEnd);  
        // loop over the query list 
        $.each(pageProducts, function(i, object) {  
            // get min and max price range for price range filter slider   
            setPriceRange(parseFloat(object.price)); 
                countCellData++; // flug to know if there is content                
                cell += '<td align="center" >'; 
                cell += '<div><img src="'+object.image+'" alt="'+object.title+'" title="'+object.title+'" longdesc="'+object.id+'" border="0" ><\/div>';
                cell += '<div>'+object.title+'<\/div>';
                cell += '<div>'+object.price+'<\/div>';
                cell += '<div>'+object.category+'<\/div>';
                cell += '<\/td>'; 
                  
                totalLoop--;
                loop++;  
                // if the row ended but the table as unmach cells  number
                 
                if(!totalLoop && loop){   
                   for(var i=0;i<(maxColumn-loop);i++){  
                   // add empty cell     
                       cell += '<td> <\/td>';                       
                   } 
                }  
                // determine if the row ended  
                    
                if(loop==maxColumn ){    
                  cell += '<\/tr>'; 
                  loop = 0;
                  if(totalLoop){          
                      cell += '<tr>'; 
                  }
                }  
    });   
    cell += '<\/tr>'; 
    cell += '<\/table>'; 
    if(countCellData>0){
        // if exist content
        $('#product_show').html(cell);
        // set image onclick event
        $('#product_show img').click(function(){ 
              alert('Product ID = '+$(this).attr('longdesc'));
        });
        
    }   
    setPagination();
}
</script>