Reload a page when a user press the back button

Hi all, I don't know if this is a PHP related question, but here it is: I'm developing a PHP / MySQL site, and, in one page the admin of the site has the power to add categories to the database in a <input type="text"> field. To check if the entry is already set, there is a <select> control with all the entries in the database. So, when the admin type the name of the categorie and press the submit button, another page load and tell if the insert operation was success or not. Then if the entry was add and press the back link ( <a href="" window.history.back();return false">[ back ]</a> ) the option in the <select> is not show after the user press the reload button. Is there a way that the page reaload automatically the data from the database without the user pressing the reload button? Thanks in advance. -- Mauricio Téllez Jiménez Seguimiento Técnico EDUMEXICO edumexico@speedy.coacade.uv.mx edumexico@yupimail.com Zamora No. 25, Col. Centro C.P. 91000, Xalapa, Ver. Tel. 52(28)17-86-87, 17-73-80 Fax. 52(28)18-64-13