สอบถามเรื่อง function pagination ติดปัญหาการนับจำนวนหน้า

<!-- Content Category Search-->
                <div class="row-fluid hide" id="Search">
               	  <div class="bar">
                    	ค้นหาหมวดหมู่สินค้า
                        <div class="form-search pull-right">
                        	<input type="search" id="sCategory" placeholder="หมวดหมู่สินค้า" />
                            <button class="btn" id="btnSearch"><i class="icon-search"></i></button>
                    </div>
                    </div>
                    <div class="padding">
                    	<table class="table table-bordered" id="tbSearch">
                        	<thead>
                            	<th>ลำดับ</th>
                                <th>หมวดหมู่สินค้า</th>
                                <th>เขียนวันที่</th>
                                <th>แก้ไขล่าสุด</th>
                                <th>แก้ไข</th>
                                <th>ลบ</th>
                            </thead>
                            <tbody>
                            </tbody>
                        </table>
                    </div>
                </div>
<script src="bootstrap/js/jquery-1.10.2.min.js"></script>
<script>
$(function(){
      Search('',1);
     $('#btnSearch').click(function(){
          Search($('#sCategory').val(),1);
     });
});
function Search(Category,Page){
			var i=0;
			var tbSearch=$('#tbSearch tbody').empty();
			$.ajax({url:"admin_record_category.php",
				async:false,
				cache:false,
				global:false,
				type:"POST",
				data:"Category="+Category+
					"&Page="+Page,
				success: function(result){
					var obj=jQuery.parseJSON(result);
					$.each(obj,function(key,val){
						i++;
						tbSearch.append('<tr><td>'+i+'</td><td>'+val['Category']+'</td><td>'+val['CreateDate']+val['CreateTime']+'</td><td>'+val['UpdateDate']+val['UpdateTime']+'</td><td><i class="icon-edit"></i></td><td><i class="icon-remove"></i></td></tr>');
					});
				}
			});
</script>

<?php
	include ("module/php/config.inc.php");
	include ("module/php/function.inc.php");
	
	$Category=mysql_real_escape_string($_POST['Category']);
	$Page=mysql_real_escape_string($_POST['Page']);
	if($Category != "" || $Page != ""){
		$select=select("active_category","WHERE Category LIKE '%".$Category."%'");
		$numRows=numRows($select);
		$PerPages=5;
		if(!$Page){
			$Page=1;	
		}
		$PageStart=($PerPages*$Page)-$PerPages;
		if($numRows<$PerPages){
			$NumPages=1;	
		}else if(($numRows%$PerPages)==0){
			$NumPages=$numRows/$PerPages;	
		}else{
			$NumPages=ceil($numRows/$PerPages);	
		}
		$select=select("active_category","WHERE Category LIKE '%".$Category."%' LIMIT $PageStart,$PerPages");
		$numFields=numFields($select);
		$arrResult=array();
		while($Category=mysql_fetch_array($select)){
			$arrCol=array();
			for($i=0;$i<$numFields;$i++){
				$arrCol[mysql_field_name($select,$i)]=$Category[$i];	
			}
			array_push($arrResult,$arrCol);
		}
		echo json_encode($arrResult);
	}
?>