Link Dynamic URL

I am finding it difficult to word this and I hope I get it across OK. Plus it’s late as usual.(-:

My swf file is stored on the web server in say /images/swf/my_swf.swf

The web page I want to link to is stored in the same folder /images/swf/My_Page.htm

So if my_swf.swf is embedded in say Original.htm page in the /images/swf/ directory. When the visitor to Original.htm Clicks on the Button_btn they will be linked to the My_Page.htm with the following code.

_root.Button_btn.onPress = function () {
getURL("My_Page.htm", "mainFrame");
}

My Problem is this. I have to store the My_Page.htm and the my_swf.swf where they are but the Original.htm is else where and has a number of other .swf’s on it. So now when the Vistor click on the Button_btn the link tries to find the My_page.htm in the root of the Original.htm

How can I make the link in the my_swf.swf force the link to read from the root of the swf rather than the Original.htm?

Did that make sense:h:

Cheers BaNa
g’night