Flash and javascript history.go trouble

hi

i´m working on a site wich has some flash menu
i need to make a button tell the browser to make the classic back navigation but wont work

tried writing javascript in actionscript at flash

[color=seagreen]on (press) { getURL (“javascript:history.go(-1)”); }[/color]

or calling a function from flash to the asp page and got no answer (no error warning or any browser response)

[color=seagreen]on (press) { getURL (“javascript:goback()”); }[/color]

im sure the function code is working because if i call it from a button or an href at the page it works fine
[color=#2e8b57][/color]
[color=#2e8b57]function goback() { javascript:history.go(-1) }[/color]

got some other javascript functions like one for printing and another for closing a window wich was open with javascript and i call em from flash and work fine, but found trouble with this one

any help would be apreciated

seeya, sol