//author:hellheaven

function loop(TargetMC, T) {
	tc = eval(TargetMC);
	var normal = true;
	function SLoop() {
		if (tc._currentframe == undefined) {
			clearInterval(TargetMC);
		}
		if (normal) {
			var cf = tc._currentframe+1;
			tc.gotoAndStop(cf);
			if (tc._currentframe == tc._totalframes) {
				normal = false;
			}
		} else {
			var cf = tc._currentframe-1;
			tc.gotoAndStop(cf);
			if (tc._currentframe == 1) {
				normal = true;
			}
		}
	}
	if (T != undefined) {
		TargetMC = setInterval(SLoop, T);
	} else {
		clearInterval(TargetMC);
	}
}
function back(TargetMC, T) {
	var TargetMC = String(TargetMC);
	var tc = eval(TargetMC);
	tc.stop();
	function run() {
		if (tc._currentframe == undefined) {
			clearInterval(TargetMC);
		}
		if (tc._currentframe>1) {
			var k = tc._currentframe-1;
			tc.gotoAndStop(k);
		} else {
			tc.gotoAndStop(tc._totalframes);
		}
	}
	if (T != undefined) {
		TargetMC = setInterval(run, T);
		trace(TargetMC);
	} else {
		clearInterval(TargetMC);
	}
}