<?php                                          

   include ("dbcon_.php");
   $sql = mysql_query("
     SELECT BranchName
     FROM TblBranch
     ORDER BY BranchName ASC
   ");

   $options = array();
   if(!mysql_num_rows($sql) == 0) {
        while ($options[] = mysql_fetch_array($sql)) continue;
   }

   echo '<select name="CmbBr" id="CmbBr">';

   foreach ($options as $row) {
     echo '<option value="'.$row["BranchName"].'">'.$row["BranchName"].'</option>';
   }

   echo '</select>';

?>