for (var x = 0; x<5; x++) {
	trace(x);
}

//setCheckers(600, 600);
setCheckers(580, 540);

function setCheckers(bWidth:Number, bHeight:Number):Void {
	var xPos:Number = 0;
	var yPos:Number = 0;
	var mWidth:Number = 30;
	var mHeight:Number = 30;
	var cols:Number = Math.floor(bWidth/mWidth);
	var rows:Number = Math.floor(bHeight/mHeight);
	for (var n:Number = 0; n < rows; n++) {
		for (var t:Number = 0; t < cols; t++) {
			if ((n + t) % 2 == 0) {
				var mcType:String = "a";
			} else {
				var mcType:String = "b";
			}
			var id:Number = n * cols+ t;
			var _mc:MovieClip = this.attachMovie(mcType, "mc"+id, id);
			_mc._x = xPos + mWidth * t;
			_mc._y = yPos + mHeight * n;
		}
	}
}

for(i = 0; i < 5; i++) {
	if(i % 2 == 0){
	trace(i);
	}
};

for(i = 0; i < 10; i++) {
	if(i % 2 == 0){
	trace(i + "は偶数です");}
	else {
	trace(i + "は奇数です");}
}

var a = "は偶数です";
var b = "は奇数です";

for(i = 0; i < 10; i++) {
	if(i % 2 == 0){
	trace(i + a);}
	else {
	trace(i + b);}
}