/*=======================================
사용시 "공대여자는 예쁘다"를 나타내셔야합니다.

만든날 : 2007-06-07
만든이 : mins01,mins,공대여자
홈페이지 : http://mins01.zerock.net
NateOn&MSN : mins01(at)lycos.co.kr
========================================*/
var js_rolling = function(this_s,movepx){
    // 시간단위는 ms로 1000이 1초
    if(this_s.nodeType==1){
        this.this_s = this_s;
    }else{
        this.this_s = document.getElementById(this_s);
    }
    this.is_rolling = false;
    this.direction = 1; //1:top, 2:right, 3:bottom, 4:left (시계방향) // 1번과 4번만 됨
    this.children =    null;
    this.move_gap = 1;    //움직이는 픽셀단위
//	if(movepx > 1) this.move_gap = movepx;   

    this.time_dealy = 100; //움직이는 타임딜레이
    this.time_dealy_pause = 0;//하나의 대상이 새로 시작할 때 멈추는 시간, 0 이면 적용 안함 1000 : 1초
    this.time_timer=null;
    this.time_timer_pause=null;
    this.set_direction(this.direction);
    this.init_event();
}
js_rolling.prototype.set_direction = function(direction){
    this.direction=direction;
    this.get_element_children();
}
js_rolling.prototype.init_event = function(){
    var this_s=this;
    this.this_s.onmouseover=function(){
        if(!this_s.time_timer_pause){
            this_s.pause();
        }
    }
    this.this_s.onmouseout=function(){
        if(!this_s.time_timer_pause){
            this_s.resume();
        }
    }
}
js_rolling.prototype.get_element_children = function(){
    this.this_s.style.position='relative';
    this.this_s.style.overflow='hidden';
    var children = this.this_s.childNodes;
    this.children = children;
    for(var i=(children.length-1);0<=i;i--){
        if(children[i].nodeType==1){
            children[i].style.position='relative';
            if(this.direction==1){
                children[i].style.top='0px';
            }else if(this.direction==4){
                children[i].style.left='0px';
                this.this_s.style.whiteSpace='nowrap';
            }
        }else{
            this.this_s.removeChild(children[i]);
        }
    }
}
js_rolling.prototype.act_move_up = function(){
    for(var i = 0,m=this.children.length;i<m;i++){
        var child = this.children[i];
        child.style.top=(parseInt(child.style.top)-this.move_gap)+'px';
    }
    if((this.children[0].offsetHeight+parseInt(this.children[0].style.top))<=0){
        this.this_s.appendChild(this.children[0]);
        this.get_element_children();
        if(this.time_dealy_pause){
            var this_s = this;
            var act = function(){this_s.resume();this_s.time_timer_pause=null;}
            this.time_timer_pause = setTimeout(act,this.time_dealy_pause);
            this.pause();
        }
    }
}
js_rolling.prototype.act_move_left = function(){
    for(var i = 0,m=this.children.length;i<m;i++){
        var child = this.children[i];
        child.style.left=(parseInt(child.style.left)-this.move_gap)+'px';
    }
    if((this.children[0].offsetWidth+parseInt(this.children[0].style.left))<=0){
        this.this_s.appendChild(this.this_s.firstChild);
        this.get_element_children();
        if(this.time_dealy_pause){
            var this_s = this;
            var act = function(){this_s.resume();this_s.time_timer_pause=null;}
            this.time_timer_pause = setTimeout(act,this.time_dealy_pause);
            this.pause();
        }
    }
}
js_rolling.prototype.start = function(){ //롤링 시작
    var this_s = this;
    this.stop();
    this.is_rolling = true;
    var act = function(){
        if(this_s.is_rolling){
            if(this_s.direction==1){this_s.act_move_up();}
            else if(this_s.direction==4){this_s.act_move_left();}
        }
    }
    this.time_timer = setInterval(act,this.time_dealy);
}
js_rolling.prototype.pause = function(){ //일시 멈춤
    this.is_rolling = false;
}
js_rolling.prototype.resume = function(){ //일시 멈춤 해제
    this.is_rolling = true;
}
js_rolling.prototype.stop = function(){ //롤링을 끝냄
    this.is_rolling = false;
    if(!this.time_timer){
        clearInterval(this.time_timer);
    }
    this.time_timer = null
}
//============================================