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Question

Hi,
I have a form, in which i have 2 dropdown boxes and textbox. When i select values from each of the dropdown box and give a value in the text box, i have a query formed in 2nd text box. I have a sujbmit button, by pressing which i need to execute the query. However, my query displays, when i select the values. I want to know how to execute the query on pressing submit button.

Please Help me!!!
Regards.