ติดปัญกาแบ่งหน้า พอไปหน้า 2 ตัวแปรที่ใช้ค้นหา ไม่ไปด้วยครับ ขอคำแนะนำด้วยครับ

    	mysql_query("SET NAMES UTF8");
    	$page = (int) (!isset($_GET["page"]) ? 1 : $_GET["page"]);
    	$limit = 25;
    	$startpoint = ($page * $limit) - $limit;
        
        //to make pagination


        $statement = "parttime WHERE 1 ";
		
		if($_GET["radiozone"] != "")
	{
		$statement.= " AND zone = '".$_GET["radiozone"]."' ";
	}

	if($_GET["radiogender"] != "")
	{
		$statement.= " AND gender = '".$_GET["radiogender"]."' ";
	}
	if($_GET["name"] != "")
	{
		$statement.= " AND name = '".$_GET["name"]."' ";
	}
	if($_GET["surname"] != "")
	{
		$statement.= " AND surname = '".$_GET["surname"]."' ";
	}
	if($_GET["txtlocation"] != "")
	{
		$statement.= " AND (location1 = '".$_GET["txtlocation"]."' OR location2 = '".$_GET["txtlocation"]."' OR location3 = '".$_GET["txtlocation"]."')";
	}
	if($_GET["radiotime"] != "")
	{
		$statement.= " AND (time1 = '".$_GET["radiotime"]."' OR time2 = '".$_GET["radiotime"]."' OR time3 = '".$_GET["radiotime"]."')";
	}
	if($_GET["university"] != "")
	{
		$statement.= " AND university = '".$_GET["university"]."' ";
	}
	if($_GET["education"] != "")
	{
		$statement.= " AND education = '".$_GET["education"]."' ";
	}

	if($_GET["age"] != "") 
		{
			if($_GET["age"] == '1')
			{
				$statement.= "AND age BETWEEN '15' and '25'";
			}
			elseif($_GET["age"] == '2')
			{
				$statement.= "AND age BETWEEN '20' and '30'";
			}
			elseif($_GET["age"] == '3')
			{
				$statement.= "AND age BETWEEN '25' and '35'";
			}
			elseif($_GET["age"] == '4')
			{
				$statement.= "AND age BETWEEN '30' and '40'";
			}
		}
		if($_GET["hour"] != "") 
		{
			if($_GET["hour"] == '1')
			{
				$statement.= "AND hour > 50";
			}
			elseif($_GET["hour"] == '2')
			{
				$statement.= "AND hour > 100";
			}
			elseif($_GET["hour"] == '3')
			{
				$statement.= "AND hour > 200";
			}
			elseif($_GET["hour"] == '4')
			{
				$statement.= "AND hour > 300";
			}
			elseif($_GET["hour"] == '5')
			{
				$statement.= "AND hour > 400";
			}
			elseif($_GET["hour"] == '6')
			{
				$statement.= "AND hour > 500";
			}
			
		}
	$query = mysql_query("SELECT * FROM {$statement} LIMIT {$startpoint} , {$limit}");
?>