Urgent !!! Modifying price display

[boulio]

Hello,

 

I am using the version 1.4.1.0

 

I have identifyed product.tpl to be the file in which price are displayed

 

I'd like to modify this price depending on a value of a combobox

 

For exemple I have a combobox with value "1" or "2"

 

If I choose "1" then it display the real price

If I choose "2" then it display a modifyed price

 

The goal is to be able to display x different prices regarding the combobox value without using declinaison

 

if you have any solution to display x prices regarding to a personal value without adding configuration in the backoffice it will suit (or by adding something easily)

 

Thanks for helping