<!--//间歇滚动
function SlideBox(container, frequency, direction) {
if (typeof(container) == 'string') {
container = document.getElementById(container);
}
this.container = container;
this.frequency = frequency;
this.direction = direction;
this.films = [];
var divs = this.container.getElementsByTagName('div');
for (var i = 0; i < divs.length; i++) {
if (divs.className == 'slideFilm') {
divs.onmouseover = function(self){return function(){self._mouseover()};}(this);
divs.onmouseout = function(self){return function(){self._mouseout()};}(this);
this.films[this.films.length] = divs;
}
}
this._playTimeoutId = null;
this._slideTimeoutId = null;
this._slidable = true;
this._loop();
}
SlideBox.prototype = {
_loop : function() {
var sb = this;
this._playTimeoutId = setTimeout(function(){sb._slide()}, this.frequency);
},
_slide : function() {
var sb = this;
var _slide = function() {
if (!sb._slidable) return;
var c = sb.container;
if (sb.direction == 'top') {
if (c.scrollTop < c.offsetHeight-2) {
  c.scrollTop += 2;
} else {
  clearInterval(sb._slideTimeoutId);
  sb._loop();
  var ul = c.getElementsByTagName('ul')[0];
  ul.appendChild(c.getElementsByTagName('li')[0]);
  c.scrollTop = 0;
}
} else if (sb.direction == 'left') {
if (c.scrollLeft < c.offsetWidth-2) {
  c.scrollLeft += 2;
} else {
  clearInterval(sb._slideTimeoutId);
  sb._loop();
  var ul = c.getElementsByTagName('ul')[0];
  ul.appendChild(c.getElementsByTagName('li')[0]);
  c.scrollLeft = 0;
}
}
}
this._slideTimeoutId = setInterval(_slide, 10);
},
_mouseover : function() {
this._slidable = false;
},
_mouseout : function() {
this._slidable = true;
}
}
//-->