How to combine movie clip names and call them(H5)

var data = new Array();
for(var i = 0; i < 8; i++) {
data[i] = new Array();
for(var j = 0; j < 8; j++) {
data[i][j] = "axa"+i+j;
}

}

this.data[1][1].x=0

There is a clip of the movie named axa11 on the canvas.

But I can't control it