//scrollBodyId: String 内部滚动div的id
//scrollBoxId: String 外面限制div的id
//showHeight: Int 限制显示高度
//showWidth: Int 限制显示宽度
//lineHeight: Int 每行的高度
//stopTime: Int 间隔停止的时间（毫秒）
//speed: Int 滚动速度（毫秒，越小越快）
//var sample = new ScrollObj("scroollBody","scroollBox",36,300,19,50,50);
var ScrollObj = function(scrollBodyId,scrollBoxId,showHeight,showWidth,lineHeight,stopTime,speed) {
this.obj = document.getElementById(scrollBodyId);
this.box = document.getElementById(scrollBoxId);
this.style = this.obj.style;
this.defaultHeight = this.obj.offsetHeight;
this.obj.innerHTML += this.obj.innerHTML;
this.obj.style.position = "relative";
this.box.style.height = showHeight;
this.box.style.width = showWidth;
this.box.style.overflow = "hidden";
this.scrollUp = doScrollUp;
this.stopScroll = false;
this.curLineHeight = 0;
this.lineHeight = lineHeight;
this.curStopTime = 0;
this.stopTime = stopTime;
this.speed = speed;
this.style.top = lineHeight;
this.object = scrollBodyId + "Object";
eval(this.object + "=this");
setInterval(this.object+".scrollUp()",speed);
this.obj.onmouseover=new Function(this.object+".stopScroll=true");
this.obj.onmouseout=new Function(this.object+".stopScroll=false");
}
function doScrollUp(){
if( this.stopScroll == true )
return;
this.curLineHeight += 1;
if( this.curLineHeight >= this.lineHeight ){
this.curStopTime += 1;
if( this.curStopTime >= this.stopTime ){
this.curLineHeight = 0;
this.curStopTime = 0;
}
}
else{
this.style.top = parseInt(this.style.top) - 1;
if( -parseInt(this.style.top) >= this.defaultHeight ){
this.style.top = 0;
}
}
}
凡是有该标志的文章，都是该blog博主Caoer（草儿）原创，凡是索引、收藏
、转载请注明来处和原文作者。非常感谢。