Refresh Problem On Refreshing a Submitted Form

Hi, I have great problems about refreshing a page having a Form.When anyone refreshes a submitted form it gets INSERTED Twice in the DB.Is there any strong way to stop this.I know two ways to do it using SESSIONS or redirecting.But its not that Firm.In firefox it does send it again.Also my use is that , that the user may want to use the form again.Please help me.Thanks and have a good day.

Use Javascript.if(button.onlick)button.disabled=true;I hope you get the idea.. The above code is not correct, but using event functions, you can disable the submit button once its clicked.

You can still refresh by pressing F5 or the 'Refresh' button on the taskbar.The only thing you can do is making the form empty after sending or just give a message that the iformation has been sent.Maybe then you have a problem with the 'Back' button.All depends on what you are using on your form :only html + javascript , html + perl or html + php.

well i am using html + javascript + php