//----------------------------------------------
//Floating v1.1 Source By Bermann
//dobermann75@gmail.com
//----------------------------------------------

//new Floating(적용할개체 , X축여백 , Y축여백 , 미끄러지는속도:작을수록빠름..기본20 , 빠르기:작을수록부드러움..기본10, 기본높이);

function Floating(FloatingObj,MarginX,MarginY,Percentage,setTime,basicHeight) {
  this.FloatingObj = FloatingObj;
  this.MarginX = (MarginX) ? MarginX : 0;
  this.MarginY = (MarginY) ? MarginY : 0;
  this.Percentage = (Percentage) ? Percentage : 20;
  this.setTime = (setTime) ? setTime : 10;
  this.FloatingObj.style.position = "absolute";
  this.Body = null;
  this.setTimeOut = null;
  this.basicHeight = basicHeight;
  this.Run();
}

Floating.prototype.Run = function () {
  if ((document.documentElement.scrollLeft + document.documentElement.scrollTop) > (document.body.scrollLeft + document.body.scrollTop)) {
    this.Body = document.documentElement;
  } else {
    this.Body = document.body;
  }

  var This = this;
  var FloatingObjLeft = (this.FloatingObj.style.left) ? parseInt(this.FloatingObj.style.left,10) : this.FloatingObj.offsetLeft;
  var FloatingObjTop = (this.FloatingObj.style.top) ? parseInt(this.FloatingObj.style.top,10) : this.FloatingObj.offsetTop;
  var DocLeft = this.Body.scrollLeft + this.MarginX;
  var DocTop = this.Body.scrollTop + this.MarginY;

  var MoveX = Math.abs(FloatingObjLeft - DocLeft);
  MoveX = Math.ceil(MoveX / this.Percentage);
  var MoveY = Math.abs(FloatingObjTop - DocTop);
  MoveY = Math.ceil(MoveY / this.Percentage);

  if (FloatingObjLeft < DocLeft) {
    //this.FloatingObj.style.left = FloatingObjLeft + MoveX + "px";
    this.FloatingObj.style.left = "0";
  } else {
    this.FloatingObj.style.left = FloatingObjLeft - MoveX + "px";
  }

  if (FloatingObjTop < DocTop) {
    var docHeight = document.body.clientHeight - this.basicHeight;
    if(DocTop > docHeight){
      this.FloatingObj.style.top = docHeight + "px";
    }else{
      this.FloatingObj.style.top = FloatingObjTop + MoveY + "px";
    }
  } else {
    this.FloatingObj.style.top = FloatingObjTop - MoveY + "px";
  }

  window.clearTimeout(this.setTimeOut);
  this.setTimeOut = window.setTimeout(function () { This.Run(); },this.setTime);
}