488042 Joomla global configuration edit

We need extra fields added to the global configuration page. 1 Day: ___ (this will replace the 1.50 value from below) 2 Day: ___ (this will replace the 1.00 value from below) 3 Day: ___ (this will replace the .90 value from below) 5 Day: ___ (this will replace the .80 value from below) When the user fills in this price here and saves it, the code from our component will be replaced. An example is that if a user put .50 for the 5 day above, the line below (from the component) will be $amt=0.50; --------------------------- if($_POST['deltime']=='7') $amt=0.80; if($_POST['deltime']=='5') $amt=0.90; if($_POST['deltime']=='3') $amt=1.00; if($_POST['deltime']=='1') $amt=1.50; --------------------------- We need this done for a few more fields in our component. We also want a few fields from the global configuration hidden so users cannot see it.