gpSet
The PHP function gpSet 'fakes' a GET/POST variable, making it
appear as if it had beent sent from the browser. The first
parameter names the variable, the second parameter is the value.
If the named parameter actually came from the browser, the
browser's value will be overwritten.
string $key - Name of variable
mixed $value - Value to assign
function gpSet($key,$value='') {
$GLOBALS["AG"]["clean"][$key] = $value;
}