Question about running another script with an argument

Hi,

I need to run ps1 file with arguments from a main script.

let's say i have this script - simple function that writes to screen according to the input parameter from the main script :

------------------------------

function test($global:param1) {

write-host $param1

Start-Sleep 3

}

test($param1)

----------------------------

Main script is something like that:

$global:param1="this is a test"

$arglist = "C:\PS_tests\fucntionTest.ps1", "$param1"  

Start-Process powershell.exe -ArgumentList $arglist 

It does run the function and i can see the 3 seconds delay but the parameter param1 is not in used by the function. Any suggestions how to make it work?

Daniel