การแบ่งหน้าโดยใข้ where (เงื่อนไข) แบ่งประเภทของข่าว ทำไมผลลัพธิ์ออกมาเป็นแบบนี้

<?
$id_type=$_GET['id_type'];
include "function.php";
include "connect.php";



		$objDB = mysql_select_db("db_news");
		$strSQL = "select * from tb_new "; // สังเกดตรงนี้น่ะครับ
	    $objQuery = mysql_query($strSQL);
		
		
		$Num_Rows = mysql_num_rows($objQuery);

		$Per_Page = 10;   // Per Page

		$Page = $_GET["Page"];
		if(!$_GET["Page"])
		{
			$Page=1;
		}

		$Prev_Page = $Page-1;
		$Next_Page = $Page+1;

		$Page_Start = (($Per_Page*$Page)-$Per_Page);
		if($Num_Rows<=$Per_Page)
		{
			$Num_Pages =1;tb
		}
		else if(($Num_Rows % $Per_Page)==0)
		{
			$Num_Pages =($Num_Rows/$Per_Page) ;
		}
		else
		{
			$Num_Pages =($Num_Rows/$Per_Page)+1;
			$Num_Pages = (int)$Num_Pages;
		}

		$strSQL .=" order  by id_new ASC LIMIT $Page_Start , $Per_Page";
		$objQuery  = mysql_query($strSQL);

---------------------------
มีทั้งหมด <?= $Num_Rows;?>  เรื่อง : <?=$Num_Pages;?> หน้า :
		<?
		if($Prev_Page)
		{
			echo " <a href='$_SERVER[SCRIPT_NAME]?Page=$Prev_Page'><< Back</a> ";
		}

		for($i=1; $i<=$Num_Pages; $i++){
			if($i != $Page)
			{
				echo "[ <a href='$_SERVER[SCRIPT_NAME]?Page=$i'>$i</a> ]";
			}
			else
			{
				echo "<b> $i </b>";
			}
		}
		if($Page!=$Num_Pages)
		{
			echo " <a href ='$_SERVER[SCRIPT_NAME]?Page=$Next_Page'>Next>></a> ";
		}
		?>

<?
$id_type=$_GET['id_type'];
include "function.php";
include "connect.php";

$objDB = mysql_select_db("db_news");
		$strSQL = "select * from tb_new where type_new='$id_type'"; //// สังเกตตรงนี้ครับผม
	    $objQuery = mysql_query($strSQL);
		
		
		$Num_Rows = mysql_num_rows($objQuery);

		$Per_Page = 10;   // Per Page

		$Page = $_GET["Page"];
		if(!$_GET["Page"])
		{
			$Page=1;
		}

		$Prev_Page = $Page-1;
		$Next_Page = $Page+1;

		$Page_Start = (($Per_Page*$Page)-$Per_Page);
		if($Num_Rows<=$Per_Page)
		{
			$Num_Pages =1;
		}
		else if(($Num_Rows % $Per_Page)==0)
		{
			$Num_Pages =($Num_Rows/$Per_Page) ;
		}
		else
		{
			$Num_Pages =($Num_Rows/$Per_Page)+1;
			$Num_Pages = (int)$Num_Pages;
		}


		
		$strSQL .= "order  by id_new ASC LIMIT $Page_Start , $Per_Page";
	    $objQuery = mysql_query($strSQL);

--------------------------------

มีทั้งหมด <?= $Num_Rows;?>  เรื่อง : <?=$Num_Pages;?> หน้า :
		<?
		$id_type=$_GET['id_type'];
		if($Prev_Page)
		{
			echo " <a href='list.php?id_type=$id_type?Page=$Prev_Page'><< Back</a> ";
		}

		for($i=1; $i<=$Num_Pages; $i++){
			if($i != $Page)
			{
				echo "[ <a href='list.php?id_type=$id_type?Page=$i'>$i</a> ]";
			}
			else
			{
				echo "<b> $i </b>";
			}
		}
		if($Page!=$Num_Pages)
		{
			echo " <a href ='list.php?id_type=$id_type?Page=$Next_Page'>Next>></a> ";
		}
		?>