var prevNum_Com = 1;
	var rollNum = 1;
	var node_val = 0;
	var temp_str = new Array();

	var rolling = function(ta){
		this.ta = ta;	
		this.ta_id = 'roll_'+(this.ta.id||this.ta.name);
		this.gap = 5;					//¿òÁ÷ÀÌ´Â Çȼ¿´ÜÀ§
		this.gap_count=0;			//Ä«¿îÆÿë:°ÇµéÁö ¸¶¼¼¿ä
		this.gap_time = '1000';		//¿òÁ÷ÀÌ´Â ´ÜÀ§½Ã°£
		this.gap_sleep = '2000';	//È­¸éÀÌ ¸ØÃçÀÖÀ» ´ÜÀ§½Ã°£
		this.over_stop = true;  //¸¶¿ì½º¸¦ ¿Ã·ÈÀ» ¶§ ¸ØÃâ °ÍÀΰ¡?
		this.timer = null;
		eval(this.ta_id+'=this');
		var temp = eval(this.ta_id);
		this.init_div();	
	}

	rolling.prototype.start = function(){	//·Ñ¸µ ½ÃÀÛ
		this.ta.readonly =false;
		this.stop =false;	
		if(!this.timer){ this.rolling();	 }
	}

	rolling.prototype.stop = function(){	//·Ñ¸µ ¸ØÃã
		this.stop =true;
	}

	rolling.prototype.init_div = function(){	//<div> »©°í ÀüºÎ Á¦°Å , ½ºÅ¸ÀÏ ÃʱâÈ­
		this.ta.style.position="relative";
		this.ta.style.overflow="hidden";
		this.ta.onmouseover=function(){ eval("this.readOnly=true;"); }
		this.ta.onmouseout=function(){ eval("this.readOnly=false;"); }

		var child = this.ta.childNodes;
		var ch = this.ta.firstChild;
		var ch2 = null;
		while(ch){
			ch2 = ch.nextSibling;
			if(ch.nodeName.toLowerCase() !='div'){
				this.ta.removeChild(ch);
			}else{
				ch.style.position = "relative";
				ch.style.borderStyle='none';
				ch.style.display='';
				ch.style.top='0px';
			}
			ch=ch2;
		}
	}

	rolling.prototype.strtonum = function(str){
		var num = parseInt(str);
		if(isNaN(num)) num = '0';
		return num
	}

	rolling.prototype.strtopx = function(str){
		var num = this.strtonum(str);
		return num+'px';
	}

	rolling.prototype.rolling = function(){
		if(this.gap_count==0){
			this.sleep();
			this.gap_count+=1;
			return;
		}
		if(!this.ta.readOnly && !this.stop){
			this.rolling_top();
		}
		this.timer = null;
		var re = this.ta_id+'.rolling()';
		this.timer = setTimeout(re,this.gap_time);
	}

	rolling.prototype.rolling_top = function(){
		this.gap_count+=parseInt(this.gap);
		var ch1 = this.ta.firstChild;
		var child = this.ta.childNodes;
		var ta_ch = null;
		var	top_ori = this.strtonum(child[0].style.top);
		var top = this.strtopx(top_ori-parseInt(this.gap));			
		for(var i=0,m=child.length;i<m;i++){
			child[i].style.top=top;
		}
		if(this.gap_count >= this.strtonum(ch1.style.height)){
			var temp =ch1.cloneNode(true);	
			this.ta.removeChild(ch1);
			this.ta.appendChild(temp);
			for(var i=0,m=child.length;i<m;i++){
				child[i].style.top='0px';
			}		
		this.gap_count = 0		
		}
	}

	rolling.prototype.sleep = function(){
		this.timer = null;
		var re = this.ta_id+'.rolling()';
		this.timer = setTimeout(re,this.gap_sleep);
	}

	rolling.prototype.Data_Init = function(cnt){
		temp_str[0] = this.ta.childNodes[0].innerHTML;
		temp_str[1] = this.ta.childNodes[1].innerHTML;

		if (cnt > 2)
		{
			temp_str[2] = this.ta.childNodes[2].innerHTML;
		}
	}

	rolling.prototype.click = function(val){
		this.ta.childNodes[0].innerHTML = temp_str[val];
	}