When you submit a form, refresh the parent page, the old pop-up dialog box, how to handle

When you submit a form and refresh the parent page, the old pop-up dialog box
On the parent page a.php click on a link to b.php to modify the data
B.php to submit data after the modification,
A.php also refreshes the page.

Each refresh will pop up a dialog box "
"To display the page again, Internet Explorer needs to resend the information you previously submitted ... ”
Is there any way to get rid of this dialog box?

a.php

PHP Code

  
   Link

b.php

PHP Code

  
   mysql_query ($sqlInstorage);    Echo ';

Look at some of the online methods are useless ah ... Ask the high finger to teach! Thank you

------Solution--------------------
mysql_query ($sqlInstorage);
Echo '