Popup menu and Resolution changes

[TheSaviour]

I am having a lot of trouble with a Fireworks 4 created popup menu which is activated in an OnMouseOver event with the following code:
window.FW_showMenu(window.fw_menu_1,392,130);
Which as you can see includes the coordinates to popup, but the trouble is that as the screen resolution changes these coordinates become inaccurate. What I need is a javascript function that I can enter the right coordinates for each of the four menu functions (window.fw_menu_1, fw_menu_2 etc) so that in my OnMouseOver event I can just call this function with the appropriate menu number (the coordinates for that res would be in the function). I have attempted this so far with a series of if... loops but someone with more experience in javascript must know a better way. Any help appreciated.
Thanks

TheSaviour

 

[TheSaviour]

So far I am using this:
function Resolutionloadmenu0() {
if(screen.width==1024)
{window.FW_showMenu(window.fw_menu_0,200,130);}
if(screen.width==800)
{window.FW_showMenu(window.fw_menu_0,2,130);}
}
but what I want to be able to do is have say a number parameter so I can load any menu from the same function because this only shows menu0. Can someone help me with this?
Thanks

TheSaviour