Varible mc name

hallo!
ive got an variable which contains the name of an mc i want to switch x, y corrdinates for
how would i do that?

ActionScript Code:
[FONT=Courier New][LEFT]myMcName=[COLOR=#FF0000]"ss1"[/COLOR];

myMcName.[COLOR=#0000FF]_x[/COLOR]=[COLOR=#000080]200[/COLOR];
[/LEFT]
[/FONT]

how would i do that in a way that worked :wink:

Thanks
//VoS