Stop multiple requests to the server in JSPs

Hi,
We have multiple JSPs with submit buttons in the screenflows. The problem we have is that when a user accidentally clicks on the same SUBMIT button in quick succession the values that are sent to the server from the JSp are corrupt and the exact values user gave on the screen is not sent. It is observed to be null in most cases. So code throws null pointer at places. I know this can be stopped using javascripts by disabling the button , but is there a property on the server which can stop two submits from same screen when one is already underway. Implementing the javascript for all screens across projects would be a very huge task and i understand this was an oversight during development. The way it is currently implemented, once user clicks a submit button, a javascript method is called to do some on screen validations and then document.form.submit is called to submit the page. These errors happens when the page is clocking once the request has been sent to the server and not on the JS side.
Any suggestions/ thoughts to resolve this are welcome.
Thanks
shiva

Hello -
Try to limit instance creation to 1 (ONE).
Refer this thread : Control Instance Creation in BPM 11g
BR,
Justin.

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