function Marquee (demo, demo1, demo2, direction, delay, step) 
{ 
direction = direction.toLowerCase(); 

if(((direction == "up" || direction == "down") && ($(demo1).offsetHeight > $(demo).offsetHeight)) || ((direction == "left" || direction == "right") && ($(demo1).offsetWidth > $(demo).offsetWidth))) 
{ 
$(demo2).innerHTML = $(demo1).innerHTML; 
if(direction == "down") 
$(demo).scrollTop = 2 * $(demo1).offsetHeight - $(demo).offsetHeight; 
if(direction == "right") 
$(demo).scrollLeft = 2 * $(demo1).offsetWidth - $(demo).offsetWidth; 
} 
else 
return; 

var flag = true; 
var speed = delay == null? 1 : parseInt(delay); 
var amount = step == null? 1 : parseInt(step); 

var Marquee = function () 
{ 
switch(direction) 
{ 
case "up": 
if($(demo2).offsetTop - $(demo).scrollTop <= 0) 
$(demo).scrollTop -= $(demo1).offsetHeight; 
else 
$(demo).scrollTop += amount; 
break; 
case "down": 
if($(demo1).offsetTop - $(demo).scrollTop >= 0) 
$(demo).scrollTop += $(demo2).offsetHeight; 
else 
$(demo).scrollTop -= amount; 
break; 
case "left": 
if($(demo2).offsetWidth - $(demo).scrollLeft <= 0) 
$(demo).scrollLeft -= $(demo1).offsetWidth; 
else 
$(demo).scrollLeft += amount; 
break; 
case "right": 
if($(demo).scrollLeft <= 0) 
$(demo).scrollLeft += $(demo2).offsetWidth; 
else 
$(demo).scrollLeft -= amount; 
break; 
default:break; 
} 
} 

var timer = setInterval(Marquee,speed); 

var play = function () 
{ 
if(flag) 
{ 
clearInterval(timer); 
timer = setInterval(Marquee, speed); 
} 
} 

$(demo).onmouseover = function () 
{ 
if(flag) 
clearInterval(timer); 
} 

$(demo).onmouseout = function () 
{ 
if(flag) 
timer = setInterval(Marquee, speed); 
} 

this.delay = function (s) 
{ 
speed = s == null? 50 : parseInt(s); 
play(); 
} 

this.step = function (s) 
{ 
amount = s == null? 1 : parseInt(s); 
play(); 
} 

this.start = function () 
{ 
if(!flag) 
{ 
flag = true; 
play(); 
} 
} 

this.stop = function () 
{ 
if(flag) 
{ 
flag = false; 
clearInterval(timer); 
} 
} 

this.direction = function (s) 
{ 
s = s.toLowerCase(); 
if( s == direction ) 
return; 
if(s == "down" && direction == "up" ) 
direction = s; 
if(s == "up" && direction == "down") 
direction = s; 
if(s == "right" && direction == "left") 
direction = s; 
if(s == "left" && direction == "right") 
direction = s; 
if (s == direction) 
play(); 
} 
}