function quickMenu(str) {
	 this.top = 400;														// default top 위치;
	 this.right = 0;														// default left 위치;
	 this.ele = document.getElementById(str);		//액션 element
	 
	 this.footlimit = 150;	
	 
	 this.timer = null;
	
	 this.yHeight =  parseInt(document.documentElement.scrollHeight); //문서높이
	 this.ele.limit = this.yHeight- this.footlimit; //
	 // element  position, left, top value setup
	 this.ele.style.position	=	"absolute";
	 this.ele.style.top = this.top+"px";
	 this.ele.style.right =	this.right+"px";
	 this.moveY = this.top;
		this.start();
	}
	quickMenu.prototype.pos = function(){this.ele.style.top=this.moveY+"px";}
	quickMenu.prototype.move = function(){

		this.end = document.documentElement.scrollTop+this.top; /*스크룰바+위치값*/
		this.moveY +=   Math.floor((this.end - this.moveY ) / 10 );
		
		if(this.moveY>this.ele.limit){
				this.moveY =  this.ele.limit;
		}
		this.pos();// 위치값 입력
	 	//$("quick_menu").innerHTML = "y위치 "+this.moveY+" limit"+this.ele.limit +" 전체높이"+this.yHeight;
		this.timer = setTimeout("quickMenu.move()",10);
	}

	quickMenu.prototype.start = function(){
		this.start = parseInt (this.ele.style.top);
		this.timer = setTimeout( "quickMenu.move()",10);
	}