Problem - Dynamic Movie Clip Name Call

I can dynamically assign a movie clip name, but I don’t know how to call the clip name.

Notice in the following code, I assign each new movie clip a name: ActionScript Code:
[LEFT][COLOR=#FF0000]“memberClip”[/COLOR]+x
[/LEFT]

I can’t figure out how to call each one. I’ve tried:
ActionScript Code:
[LEFT][COLOR=#000000][[/COLOR][COLOR=#FF0000]“memberClip”[/COLOR]+x[COLOR=#000000]][/COLOR].[COLOR=#0000FF]loadmovie[/COLOR]
memberClip.[COLOR=#000080]x[/COLOR].[COLOR=#0000FF]loadmovie[/COLOR]
[/LEFT]

Can anyone point me in the right direction?

ActionScript Code:
[LEFT]x=[COLOR=#000080]0[/COLOR];

memberData = [COLOR=#000000]new[/COLOR] [COLOR=#0000FF]LoadVars[/COLOR]COLOR=#000000[/COLOR];
memberData.[COLOR=#0000FF]onLoad[/COLOR] = [COLOR=#000000]function[/COLOR]COLOR=#000000[/COLOR] [COLOR=#000000]{[/COLOR]
[COLOR=#0000FF]for[/COLOR] [COLOR=#000000]([/COLOR]x=[COLOR=#000080]0[/COLOR]; x<memberData.[COLOR=#000080]memberCount[/COLOR]; x++[COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
[COLOR=#0000FF]_root[/COLOR].[COLOR=#0000FF]createEmptyMovieClip[/COLOR][COLOR=#000000]([/COLOR][COLOR=#FF0000]“memberClip”[/COLOR]+x, [COLOR=#000080]1[/COLOR][COLOR=#000000])[/COLOR];
memberClip.[COLOR=#000080]x[/COLOR].[COLOR=#0000FF]loadMovie[/COLOR]COLOR=#000000[/COLOR];
[COLOR=#000000]}[/COLOR]
[COLOR=#000000]}[/COLOR];
memberData.[COLOR=#0000FF]sendAndLoad[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000]_global[/COLOR].[COLOR=#000080]urlPath[/COLOR]+[COLOR=#FF0000]“grabMembers.php”[/COLOR], memberData, [COLOR=#FF0000]“POST”[/COLOR][COLOR=#000000])[/COLOR];
[/LEFT]