Access MC in button

alright… here we go…

i’ve a button named PicLayer0 … this button is made out of some lines and a MC… the MC’s called pl0…

ok… now i need to load a picture into the mc inside the button… but … how to access this mc… i tried with

x = 0;
var sMC = ‘PicLayer’ + x + ‘.pl’ + x; // ‘PicLayer0.pl0’
LoadMovie(SomePic[x],sMC);

but it doesnt work… i also tried _root.PicLayer0.pl0… but it didnt work neither…

so … how to access the mc INSIDE the button correctly??

thx in advance…

yours sincerly…