diff --git a/application/default/controllers/AuthorController.php b/application/default/controllers/AuthorController.php
index c2f69c08..306e1a3b 100644
--- a/application/default/controllers/AuthorController.php
+++ b/application/default/controllers/AuthorController.php
@@ -79,7 +79,7 @@ class AuthorController extends Zend_Controller_Action
 				$keywords = $this->_request->getParam('q');
 				if(!empty($keywords))
 					$this->view->q = $keywords;
-				$search=new Search($keywords);
+				$search=new SimpleSearch($keywords);
 				$where=$search->sql_expr(array("m.title","m.description"));
 				$sql.=' and '.$where;
 			}
@@ -218,7 +218,7 @@ class AuthorController extends Zend_Controller_Action
 					$keywords = $this->_request->getParam('q');
 					if(!empty($keywords))
 						$this->view->q = $keywords;
-					$search=new Search($keywords);
+					$search=new SimpleSearch($keywords);
 					$where=$search->sql_expr(array("md.title","md.description"));
 					$select.=' and '.$where;
 				}
@@ -305,7 +305,7 @@ class AuthorController extends Zend_Controller_Action
 					$keywords = $this->_request->getParam('q');
 					if(!empty($keywords))
 						$this->view->q = $keywords;
-					$search=new Search($keywords);
+					$search=new SimpleSearch($keywords);
 					$where=$search->sql_expr(array("md.title","md.description"));
 					$sql.=' and '.$where;
 				}
@@ -401,9 +401,9 @@ class AuthorController extends Zend_Controller_Action
 			{
 				$key = trim($this->_request->getParam('q'));
 				$this->view->q = $key;
-	    		$search=new Search($key);
-   	 		$where=$search->sql_expr(array("m.title","m.description"));
-   	 		$sql.=' and '.$where;
+	    		$search=new SimpleSearch($key);
+   	 			$where=$search->sql_expr(array("m.title","m.description"));
+   	 			$sql.=' and '.$where;
 			}
 			$sql.=" ORDER BY a.status DESC,a.id DESC";
 					
@@ -777,7 +777,7 @@ class AuthorController extends Zend_Controller_Action
 					$sql = "SELECT m.uuid,m.title,m.description,a.status,a.userid FROM normalmetadata m
 							LEFT JOIN mdauthor a ON m.uuid=a.uuid 
 							WHERE ";
-					$search=new Search($keyword);
+					$search=new SimpleSearch($keyword);
 					$where=$search->sql_expr(array("m.title","m.description"));
 					$sql.=$where;
 					$sth = $this->db->prepare($sql);
@@ -1253,7 +1253,7 @@ class AuthorController extends Zend_Controller_Action
 			if(!empty($keyword))
 			{
 				$this->view->q = $keyword;
-				$search = new Search($keyword);
+				$search = new SimpleSearch($keyword);
                 $wheresql[] = $search->sql_expr(array("arc.title","arc.description")); 
 			}
 			
@@ -1681,7 +1681,7 @@ class AuthorController extends Zend_Controller_Action
 					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1";
 			if(!empty($keywords))
 			{
-				$search=new Search($keywords);
+				$search=new SimpleSearch($keywords);
 				$where=$search->sql_expr(array("md.title","md.description"));
 				$sql.=' and '.$where;
 			}
@@ -1853,7 +1853,7 @@ class AuthorController extends Zend_Controller_Action
 				$row = $sth->fetch();
 
 				//update search document
-				$search=new Search();
+				$search=new SimpleSearch();
 				//create search view in xunsearch
 				//$sql="select m.uuid,m.title,m.description,x.data,array_to_string(ARRAY( SELECT keyword.keyword FROM keyword WHERE keyword.id = m.id), ', '::text) AS keyword from normalmetadata m left join xml x on m.id=x.id where m.uuid=?";
 				$sql="select * from xunsearch where uuid=?";
@@ -2271,7 +2271,7 @@ class AuthorController extends Zend_Controller_Action
 			if(!empty($keywords))
 			{
 				$this->view->q = $keywords;
-				$search=new Search($keywords);
+				$search=new SimpleSearch($keywords);
 				$where=$search->sql_expr(array("data"));
 				$sql.=' and '.$where;
 			}
@@ -2298,7 +2298,7 @@ class AuthorController extends Zend_Controller_Action
 			if(!empty($keywords))
 			{
 				$this->view->q = $keywords;
-				$search=new Search($keywords);
+				$search=new SimpleSearch($keywords);
 				$where=$search->sql_expr(array("md.title","md.description"));
 				$sql.=' and '.$where;
 			}
@@ -2646,7 +2646,7 @@ class AuthorController extends Zend_Controller_Action
 				$this->view->q = $keywords;
 			if(!empty($keywords))
 			{
-				$search=new Search($keywords);
+				$search=new SimpleSearch($keywords);
 				$where=$search->sql_expr(array("r.reference","md.title","md.description"));
 				$sql.=' and '.$where;
 			}
@@ -2678,7 +2678,7 @@ class AuthorController extends Zend_Controller_Action
 					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1";
 			if(!empty($keywords))
 			{
-				$search=new Search($keywords);
+				$search=new SimpleSearch($keywords);
 				$where=$search->sql_expr(array("r.reference"));
 				$sql.=' and '.$where;
 			}
@@ -2711,7 +2711,7 @@ class AuthorController extends Zend_Controller_Action
 					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1";
 			if(!empty($keywords))
 			{
-				$search=new Search($keywords);
+				$search=new SimpleSearch($keywords);
 				$where=$search->sql_expr(array("md.title","md.description"));
 				$sql.=' and '.$where;
 			}
@@ -2924,7 +2924,7 @@ class AuthorController extends Zend_Controller_Action
 		   if($ac=='search' && !empty($keyword))
 		   {
 				$this->view->q = $keyword;
-				$search = new Search($keyword);
+				$search = new SimpleSearch($keyword);
                 $wheresql = $search->sql_expr(array("md.title")); 
 		   }
 		   if(!empty($wheresql))