function initCircleLoop() {

  circleLayer = new Array();

  if(n4) { 
    circleLayer[0] = 1 //각 레이어들의 이동 간격시간
    circleLayer[1] = new circleLoopSet(document.D1, 2, 100, 100, 200, 200, 4, 1)
    circleLayer[2] = new circleLoopSet(document.D2, -5, 200, 100, 200, 200, 4, 2)
    circleLayer[3] = new circleLoopSet(document.D3, 2, 100, 100, 200, 200, 4, 3)
    circleLayer[4] = new circleLoopSet(document.D4, -5, 200, 100, 200, 200, 4, 4)
  }
  else if(e4) {
    circleLayer[0] = 1 //각 레이어들의 이동 간격시간
    circleLayer[1] = new circleLoopSet(document.all.D1.style, 2, 100, 100, 200, 200, 4, 1)
    circleLayer[2] = new circleLoopSet(document.all.D2.style, -5, 200, 100, 200, 200, 4, 2)
    circleLayer[3] = new circleLoopSet(document.all.D3.style, 2, 100, 100, 200, 200, 4, 3)
    circleLayer[4] = new circleLoopSet(document.all.D4.style, -5, 200, 100, 200, 200, 4, 4)
  }
}