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.CTL = this.StartID = this.Stop = this.MouseOver = 0;
	this.Step = 1;
	this.Timer = 30;
	this.DirectionArray = {"top":1, "up":1, "bottom":2, "down":2, "left":3, "right":4};
	if (typeof arguments[1] == "number" || typeof arguments[1] == "string") {
		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.HalfHeight = Math.round(this.Height / 2);
	this.BakStep = this.Step;
	this.ID.style.width = this.Width + "px";
	this.ID.style.height = this.Height + "px";
	if (typeof this.ScrollStep != "number") {
		this.ScrollStep = this.Direction > 2 ? this.Width : this.Height;
	}
	var templateLeft = "<table cellspacing='0' cellpadding='0' style='border-collapse:collapse;display:inline;'><tr><td noWrap=true style='white-space: nowrap;word-break:keep-all;'>MSCLASS_TEMP_HTML</td><td noWrap=true style='white-space: nowrap;word-break:keep-all;'>MSCLASS_TEMP_HTML</td></tr></table>";
	var templateTop = "<table cellspacing='0' cellpadding='0' style='border-collapse:collapse;'><tr><td>MSCLASS_TEMP_HTML</td></tr><tr><td>MSCLASS_TEMP_HTML</td></tr></table>";
	var msobj = this;
	msobj.tempHTML = msobj.ID.innerHTML;
	if (msobj.Direction <= 2) {
		msobj.ID.innerHTML = templateTop.replace(/MSCLASS_TEMP_HTML/g, msobj.ID.innerHTML);
	} else {
		if (msobj.ScrollStep == 0 && msobj.DelayTime == 0) {
			msobj.ID.innerHTML += msobj.ID.innerHTML;
		} else {
			msobj.ID.innerHTML = templateLeft.replace(/MSCLASS_TEMP_HTML/g, msobj.ID.innerHTML);
		}
	}
	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 > 2 ? msobj.ID.scrollWidth / 2 : msobj.ID.scrollHeight / 2;
		if ((msobj.Direction <= 2 && msobj.ClientScroll <= msobj.Height + msobj.Step) || (msobj.Direction > 2 && msobj.ClientScroll <= msobj.Width + msobj.Step)) {
			msobj.ID.innerHTML = msobj.tempHTML;
			delete (msobj.tempHTML);
			return;
		}
		delete (msobj.tempHTML);
		msobj.TimerID = setInterval(msobj.StartID, timer);
		if (msobj.ScrollStep < 0) {
			return;
		}
		msobj.ID.onmousemove = function (event) {
			if (msobj.ScrollStep == 0 && msobj.Direction > 2) {
				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 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 >= this.ClientScroll) {
				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.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 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 >= this.ClientScroll) {
				this.ID.scrollLeft -= this.ClientScroll;
			}
			this.ID.scrollLeft += this.Step;
		}
		break;
	  case 4:
		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;
	}
};