PHP搜索结果分页显示有关问题。

PHP搜索结果分页显示问题。。
首页显示没问题，翻页显示数据没有。。。代码

	include_once("script/conn.php");
    class Page{
        private $curPage;//当前页面
        private $totalPages;//数据总共分多少页显示
        private $dispNum;//每页显示的数据条数
        private $queryStr;//查询的SQL语句
        private $limitStr;//查询语句后面的limit控制语句
		private $currentPage;//获取当前页面
        public function __construct($queryStr='',$dispNum=3){    
            $result = mysql_query($queryStr);
            $totalNum = mysql_num_rows($result);
            $this->dispNum = $dispNum;
			$currentPage = basename ( $_SERVER["PHP_SELF"] );	//返回路径中的文件名部分
            $this->totalPages = ceil($totalNum / $dispNum);
            $this->queryStr = $queryStr;
            $temp = (isset($_GET["curPage"]) ? $_GET["curPage"] : 1);
            $this->setCurPage($temp);
            $this->showCurPage();
            $this->showFoot();
        }        
        private function showCurPage(){
            $this->limitStr = ' LIMIT '.(($this->curPage - 1)* $this->dispNum).','.$this->dispNum;
            $result = mysql_query($this->queryStr.$this->limitStr);
            while($row = mysql_fetch_assoc($result)){
				echo "";
				echo "
";
            }
        }
        private function setCurPage($curPage){
                if($curPage < 1){
                    $curPage = 1;
                }
                else if($curPage > $this->totalPages){
                    $curPage = $this->totalPages;
                }
                    $this->curPage = $curPage;
        }
        private function showFoot(){
            echo '首页丨';
            echo 'curPage - 1).'">上一页丨';
			echo 'curPage + 1).'">下一页丨';
            echo 'totalPages.'">尾页丨';
			echo "共有".$this->totalPages."页丨";
			echo "当前第 ".$this->curPage." 页";
        }
  }
$keyword=$_POST['search'];
$sql=mysql_query("select * from didian where name like '%$keyword%'");
[email protected]_fetch_object($sql);
if(!$raw){
	echo "您搜索的信息不存在，请使用类似的关键字进行检索!";
}

如果单独这样输出是没问题的。。但加上这条的话翻页就没数据显示了..这是搜索框判断条件

switch($keyword){
	case '桂林':$pages = new Page('SELECT * FROM `image_guilin`', 3);break;
	case '海南':$pages = new Page('SELECT * FROM `image_hainan`', 3);break;
	case '北京':$pages = new Page('SELECT * FROM `image_beijing`', 3);break;
	case '九寨沟':$pages = new Page('SELECT * FROM `image_jiuzhaigou`', 3);break;
	case '太行山':$pages = new Page('SELECT * FROM `image_taihengshan`', 3);break;
	case '香格里拉':$pages = new Page('SELECT * FROM `image_xianggelila`', 3);break;
	case '小兴安岭':$pages = new Page('SELECT * FROM `image_xiaoxinganling`', 3);break;
	case '西双版纳':$pages = new Page('SELECT * FROM `image_xishuangbanna`', 3);break;
}

后面是html搜索框跳转

不知道为什么这样。。求教。。。
------解决思路----------------------
$keyword=$_POST['search'];
1.你获取参数的名称是search，不是keyword.
2.因为分页是用的是get，所以不能获取。

改成这样就可以了

include_once("script/conn.php");
    class Page{
        private $curPage;//当前页面
        private $totalPages;//数据总共分多少页显示
        private $dispNum;//每页显示的数据条数
        private $queryStr;//查询的SQL语句
        private $limitStr;//查询语句后面的limit控制语句
        private $currentPage;//获取当前页面
        private $keyword;// 关键字
        public function __construct($queryStr='', $keyword='', $dispNum=3){    
            $result = mysql_query($queryStr);
            $totalNum = mysql_num_rows($result);
            $this->dispNum = $dispNum;
            $this->keyword = $keyword;
            $currentPage = basename ( $_SERVER["PHP_SELF"] );    //返回路径中的文件名部分
            $this->totalPages = ceil($totalNum / $dispNum);
            $this->queryStr = $queryStr;
            $temp = (isset($_GET["curPage"]) ? $_GET["curPage"] : 1);
            $this->setCurPage($temp);
            $this->showCurPage();
            $this->showFoot();
        }        
        private function showCurPage(){
            $this->limitStr = ' LIMIT '.(($this->curPage - 1)* $this->dispNum).','.$this->dispNum;
            $result = mysql_query($this->queryStr.$this->limitStr);
            while($row = mysql_fetch_assoc($result)){
                echo "";
                echo "
";
            }
        }
        private function setCurPage($curPage){
                if($curPage < 1){
                    $curPage = 1;
                }
                else if($curPage > $this->totalPages){
                    $curPage = $this->totalPages;
                }
                    $this->curPage = $curPage;
        }
        private function showFoot(){
            echo 'keyword.'&curPage=1">首页丨';
            echo 'keyword.'&curPage='.($this->curPage - 1).'">上一页丨';
            echo 'keyword.'&curPage='.($this->curPage + 1).'">下一页丨';
            echo 'keyword.'&curPage='.$this->totalPages.'">尾页丨';
            echo "共有".$this->totalPages."页丨";
            echo "当前第 ".$this->curPage." 页";
        }
  }
$keyword=$_REQUEST['search'];
$sql=mysql_query("select * from didian where name like '%$keyword%'");
[email protected]_fetch_object($sql);
if(!$raw){
    echo "您搜索的信息不存在，请使用类似的关键字进行检索!";
}
?>