Weird MySQL errors

My Enterprise Module code has this method:

      function dbArray ( $sql, $connect=NULL ) {
         /***********************************************************************/
         /*  Function: dbQuery()                                                */
         /*   Purpose: Runs the database query string & returns the results or  */
         /*            reports errors.                                          */
         /***********************************************************************/
         $row_ray    =  array();
         $newquery   =  sprintf( "insert into qry_errors (error_desc) values ".
                                 "('%s')", addslashes($sql));
         switch ($this->db_eng) {
            case 'mysql':			// Process MySQL Engine
               echo "C=> $connect \n";
               $res = mysql_query ( $sql, $connect );
               if ($res == false) {
                  echo "C=> $connect \n";
                  $res = mysql_query ( $newquery, $connect ) or die ( mysql_error () );
               }  // end if $result
         		while ( $row   =  mysql_fetch_assoc ( $res ) ) {
         	      $row_ray[]  =  $row;
         	   }  // end while $row
               break;
            case 'pgsql':			// Process PostGres Engine
               $res     =  pg_query( $sql, $connect );
               if ($res == false) {
                  $res  =  pg_query( $newquery, $connect ) or
                  die("Error: Query failed with query string:<BR>$sql");
               }  // end if $result
         		while ( $row   =  pg_fetch_row ( $res ) ) {
         	      $row_ray[]  =  $row;
         	   }  // end while $row
               break;
            //case 'oracle':		// Process Oracle Engine
               //	break;
            //case 'mssql':		// Process MS-SQL Engine
               //	break;
            //case 'sybase':		// Process SyBase Engine
               //	break;
         }     // end switch
         if (dbNRows($res)==0) {
            return 0;
         } else {
            return $row_ray;
         }
         //echo "S=> $this->db_sql <br>";
      }	     // end function dbQuery

It was working fine but suddenly started giving errors:

C=> Resource id #12
PHP Warning:  mysql_query() expects parameter 2 to be resource, string given in /home/path/EM/em_dio/em_dio.php on line 138
C=> Resource id #12
PHP Warning:  mysql_query() expects parameter 2 to be resource, string given in /home/path/EM/em_dio/em_dio.php on line 141

That is when I put in the comment lines that show parm 2 is actually a 'resource'.  Does anyone know why this would change and cause these errors?

Cheers!

OMR