How to prevent duplicate inserts on click of submit mor ethan ones

[al3xii]

I´ve got one problem in one page that i have for homebanking. I have 3 buttons, functions in all ,and they´re called in a Js. The third button to submit the document works weel, but if i click 2 or 3 or more times the same button work is function all the times is clicked. I need to make the button work only one time and no more... Please help me !
a part of the code:

jsp

<center>
<table border="0" cellpadding="0" cellspacing="2">
<tr>
<td valign="top"><a href="java script:limpar();"><img src="images/limpar.gif" border="0" alt="Apagar"></a></td>
<td valign="top"><a href="java script:history.back();"><img src="images/cancelar.gif" border="0" alt="Cancelar"></a></td>
<td valign="top"><a href="java script:ValidarP(document.confirmar);"><img src="images/continuar.gif" border="0" alt="Continuar"></a></td>


</tr>
</table>
</form>
</center>
</body>
</html>


and the js


function ValidarP(form)
{

var f = document.forms[0];
var ok = true;
if (f.ClaveOperacion.value == "")
{
alert ("Deve preencher o PIN de Operações.");
f.ClaveOperacion.select();
f.ClaveOperacion.focus();
ok = false;
}
if (ok) f.submit();
}


thanks

------------------
alex vasconcelos

[Ian Glass]

Alex, is this what you're looking for: http://www.dynamicdrive.com/dynamici...submitonce.htm or http://javascript.internet.com/forms/submit-once.html?

~~Hope This Helps