diff --git a/application/models/files.php b/application/models/files.php
index c65284b1..0a39cb65 100644
--- a/application/models/files.php
+++ b/application/models/files.php
@@ -26,6 +26,7 @@ class files{
 			'flash' => array('swf', 'flv'),
 			'media' => array('swf', 'flv', 'mp3', 'wav', 'wma', 'wmv', 'mid', 'avi', 'mpg', 'asf', 'rm', 'rmvb'),
 			'file' => array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'htm', 'html', 'txt', 'zip', 'rar', 'gz', 'bz2'),
+			'reviewatt'=>array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'htm', 'html', 'txt', 'zip', 'rar', 'gz', 'bz2','gif', 'jpg', 'jpeg', 'png', 'bmp')
 		);
 		//最大文件大小
 		$max_size = 1000000;
@@ -136,6 +137,73 @@ class files{
 			}//目录正确性
 			return $msg;
 		}
-	}
-	//文件上传
+	}//文件上传
+	
+	
+	
+	/**
+	* downloadFile
+	*
+	* 文件下载
+	*
+	* @param String $fullPath   e.g. Zend_Registry::get('upload').$fileurl
+	*
+	* return file
+	*/
+	static function downloadFile( $fullPath ){
+			
+		  //判断是否已经输出头部
+		  if( headers_sent() )
+		  {
+			  return false;
+		  }
+		  else{
+			
+			  // Required for some browsers
+			  @apache_setenv('no-gzip', 1);
+			  @ini_set('zlib.output_compression', 0); 
+			
+			  // File Exists?
+			  if( file_exists($fullPath) ){
+			   
+				// Parse Info / Get Extension
+				$fsize = filesize($fullPath);
+				$path_parts = pathinfo($fullPath);
+				$ext = strtolower($path_parts["extension"]);
+			   
+				// Determine Content Type
+				switch ($ext) {
+				  case "pdf": $ctype="application/pdf"; break;
+				  case "exe": $ctype="application/octet-stream"; break;
+				  case "zip": $ctype="application/zip"; break;
+				  case "doc": $ctype="application/msword"; break;
+				  case "xls": $ctype="application/vnd.ms-excel"; break;
+				  case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
+				  case "gif": $ctype="image/gif"; break;
+				  case "png": $ctype="image/png"; break;
+				  case "jpeg":
+				  case "jpg": $ctype="image/jpg"; break;
+				  default: $ctype="application/force-download";
+				}
+				
+				header('Content-Description: File Transfer');
+				header("Cache-Control: private",false);
+				header("Content-Type: $ctype");
+				header("Content-Disposition: attachment; filename=\"".basename($fullPath)."\";" );
+				header("Content-Transfer-Encoding: binary\n");
+				header("Expires: 0");
+				header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
+				header("Pragma: public");
+				header("Content-Length: ".$fsize);
+				ob_clean();
+				flush();
+				if(readfile($fullPath))
+				return true;
+				else
+				return false;
+			} else				
+				{return false;}
+			}
+		} //文件下载
+		
 }
\ No newline at end of file