Error Query [SELECT * FROM reply WHERE ReplyID ''] ลบข้อมูลไม่ได้ช่วยด้วยครับ

		//*** Select Old File ***//
		$strSQL = "SELECT * FROM webboard WHERE QuestionID = '".$_GET["QuestionID"]."' ";
		$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
		$objResult = mysql_fetch_array($objQuery);
		
		//*** Delete Rows  ***//
		$strSQL = " DELETE FROM webboard ";
		$strSQL .=" WHERE QuestionID = '".$_GET["QuestionID"]."'";
		$objQuery = mysql_query($strSQL);
		
				//*** Loop Delete Reply ***//
		$strSQL2 = "SELECT * FROM reply WHERE ReplyID '".$_GET["ReplyID"]."'";
		$objQuery2 = mysql_query($strSQL2) or die ("Error Query [".$strSQL2."]");
		while($objResult2 = mysql_fetch_array($objQuery2))
		{
		}
		       //*** Delete All Rows  (Reply)***//
		$strSQL = " DELETE FROM reply ";
		$strSQL .=" WHERE ReplyID = '".$_GET["ReplyID"]."' ";
		$objQuery = mysql_query($strSQL);		


		
		
		echo "Delete Complete";
		mysql_close($objConnect);
		?>