function Marquee(){
    this.ID = document.getElementById(arguments[0]);
    if (!this.ID){
        alert("您要设置的\"" + arguments[0] + "\"初始化错误\r\n请检查标签ID设置是否正确!");
        this.ID = -1;
        return;
    }
    this.Direction = this.Width = this.Height = this.DelayTime = this.WaitTime = this.Correct = this.CTL = this.StartID = this.Stop = this.MouseOver = 0;
    this.Step = 1;
    this.Timer = 30;
    this.DirectionArray = {"top":0 , "bottom":1 , "left":2 , "right":3};
    if (typeof arguments[1] == "number")this.Direction = arguments[1];
    if (typeof arguments[2] == "number")this.Step = arguments[2];
    if (typeof arguments[3] == "number")this.Width = arguments[3];
    if (typeof arguments[4] == "number")this.Height = arguments[4];
    if (typeof arguments[5] == "number")this.Timer = arguments[5];
    if (typeof arguments[6] == "number")this.DelayTime = arguments[6];
    if (typeof arguments[7] == "number")this.WaitTime = arguments[7];
    if (typeof arguments[8] == "number")this.ScrollStep = arguments[8]
    this.ID.style.overflow = this.ID.style.overflowX = this.ID.style.overflowY = "hidden";
    this.ID.noWrap = true;
    this.IsNotOpera = (navigator.userAgent.toLowerCase().indexOf("opera") == -1);
    if (arguments.length >= 7)this.Start();
}
Marquee.prototype.Start = function(){
    if (this.ID == -1)return;
    if (this.WaitTime < 800)this.WaitTime = 800;
    if (this.Timer < 20)this.Timer = 20;
    if (this.Width == 0)this.Width = parseInt(this.ID.style.width);
    if (this.Height == 0)this.Height = parseInt(this.ID.style.height);
    if (typeof this.Direction == "string")this.Direction = this.DirectionArray[this.Direction.toString().toLowerCase()];
    this.HalfWidth = Math.round(this.Width / 2);
    this.BakStep = this.Step;
    this.ID.style.width = this.Width;
    this.ID.style.height = this.Height;
    if (typeof this.ScrollStep != "number")this.ScrollStep = this.Direction > 1 ? this.Width : this.Height;
    var msobj = this;
    var timer = this.Timer;
    var delaytime = this.DelayTime;
    var waittime = this.WaitTime;
    msobj.StartID = function() {
        msobj.Scroll()
    }
    msobj.Continue = function(){
        if (msobj.MouseOver == 1){
            setTimeout(msobj.Continue, delaytime);
        }else{
            clearInterval(msobj.TimerID);
            msobj.CTL = msobj.Stop = 0;
            msobj.TimerID = setInterval(msobj.StartID, timer);
        }
    }

    msobj.Pause = function(){
        msobj.Stop = 1;
        clearInterval(msobj.TimerID);
        setTimeout(msobj.Continue, delaytime);
    }

    msobj.Begin = function(){
        msobj.ClientScroll = msobj.Direction > 1 ? msobj.ID.scrollWidth : msobj.ID.scrollHeight;
        if ((msobj.Direction <= 1 && msobj.ClientScroll < msobj.Height) || (msobj.Direction > 1 && msobj.ClientScroll < msobj.Width))return;
        msobj.ID.innerHTML += msobj.ID.innerHTML;
        msobj.TimerID = setInterval(msobj.StartID, timer);
        if (msobj.ScrollStep < 0)return;
        msobj.ID.onmousemove = function(event){
            if (msobj.ScrollStep == 0 && msobj.Direction > 1){
                var event = event || window.event;
                if (window.event){
                    if (msobj.IsNotOpera){
                        msobj.EventLeft = event.srcElement.id == msobj.ID.id ? event.offsetX - msobj.ID.scrollLeft : event.srcElement.offsetLeft - msobj.ID.scrollLeft + event.offsetX;
                    }else{
                        msobj.ScrollStep = null;
                        return;
                    }
                }else{
                    msobj.EventLeft = event.layerX - msobj.ID.scrollLeft;
                }
                msobj.Direction = msobj.EventLeft > msobj.HalfWidth ? 3 : 2;
                msobj.AbsCenter = Math.abs(msobj.HalfWidth - msobj.EventLeft);
                msobj.Step = Math.round(msobj.AbsCenter * (msobj.BakStep * 2) / msobj.HalfWidth);
            }
        }
        msobj.ID.onmouseover = function(){
            if (msobj.ScrollStep == 0)return;
            msobj.MouseOver = 1;
            clearInterval(msobj.TimerID);
        }
        msobj.ID.onmouseout = function(){
            if (msobj.ScrollStep == 0){
                if (msobj.Step == 0)msobj.Step = 1;
                return;
            }
            msobj.MouseOver = 0;
            if (msobj.Stop == 0){
                clearInterval(msobj.TimerID);
                msobj.TimerID = setInterval(msobj.StartID, timer);
            }
        }
    }
    setTimeout(msobj.Begin, waittime);
}

Marquee.prototype.Scroll = function(){
    switch (this.Direction){
        case 0:
            this.CTL += this.Step;
            if (this.CTL >= this.ScrollStep && this.DelayTime > 0){
                this.ID.scrollTop += this.ScrollStep + this.Step - this.CTL;
                this.Pause();
                return;
            }else{
                if (this.ID.scrollTop >= this.ClientScroll){
                    this.ID.scrollTop -= this.ClientScroll;
                }
                this.ID.scrollTop += this.Step;
            }
            break;

        case 1:
            this.CTL += this.Step;
            if (this.CTL >= this.ScrollStep && this.DelayTime > 0){
                this.ID.scrollTop -= this.ScrollStep + this.Step - this.CTL;
                this.Pause();
                return;
            }else{
                if (this.ID.scrollTop <= 0){
                    this.ID.scrollTop += this.ClientScroll;
                }
                this.ID.scrollTop -= this.Step;
            }
            break;

        case 2:

            this.CTL += this.Step;
            if (this.CTL >= this.ScrollStep && this.DelayTime > 0){
                this.ID.scrollLeft += this.ScrollStep + this.Step - this.CTL;
                this.Pause();
                return;
            }else{
                if (this.ID.scrollLeft >= this.ClientScroll){
                    this.ID.scrollLeft -= this.ClientScroll;
                }
                this.ID.scrollLeft += this.Step;
            }
            break;

        case 3:
            this.CTL += this.Step;
            if (this.CTL >= this.ScrollStep && this.DelayTime > 0){
                this.ID.scrollLeft -= this.ScrollStep + this.Step - this.CTL;
                this.Pause();
                return;
            }else{
                if (this.ID.scrollLeft <= 0){
                    this.ID.scrollLeft += this.ClientScroll;
                }
                this.ID.scrollLeft -= this.Step;
            }
            break;
    }
}
function ResumeError() {
    return true;
}
window.onerror = ResumeError;