/**
 * @brief 뉴스티커 형식으로 표시하기 위한 초기화 작업
 **/

var newsTickerMoveUpStep = new Array();
function doStartTickerScroll(id, itemHeight, speed, scrollRate, stop) {
    var stop = stop=='Y'?true:false;
    (function($){
        var pObj = $(id);
        var obj = id.replace('#','');
        var childObj = $(id + ' ul:first-child');

        while(childObj) {
            childObj.attr('id', obj+'_first');
            var cloneObj = childObj.clone(true);
            cloneObj.attr('id', obj+'_second');
            cloneObj.insertBefore(childObj);

            var ticker = {'pObj':pObj, 'child':childObj, 'itemHeight':itemHeight, 'speed':speed, 'scrollRate':scrollRate}

            newsTickerMoveUpStep[obj] = 1;

            // 마우스 올리면 스크롤 멈추기
            if(stop) {
                pObj.hover(function() {
                    newsTickerMoveUpStep[obj] = 0;
                }, function(){
                    newsTickerMoveUpStep[obj] = 1;
                });
            }

            doTickerScroll(ticker);
            return;
        }
    })(jQuery);
}
function doTickerScroll(obj) {
    if (typeof(obj.itemHeight) == 'undefined' || !obj.itemHeight) return;
    var scrollRate = parseInt(obj.scrollRate)?parseInt(obj.scrollRate):3500;
    var itemHeight = parseInt(obj.itemHeight)?parseInt(obj.itemHeight):25;
    var pObj = obj.pObj;
    var child = obj.child;
    var st = pObj.scrollTop();

    st += newsTickerMoveUpStep[pObj.attr('id')];

    if(st > child.height()) st = 0;
    pObj.scrollTop(st);

    if(pObj.scrollTop() % itemHeight == 0) setTimeout( function() { doTickerScroll(obj); }, scrollRate);
    else setTimeout( function() { doTickerScroll(obj); }, obj.speed);
}