Very good mouse sliding image effect Javascript+CSS

<script>
ScrollImg = function(imgBoxId){
= imgBoxId; //Get the ID of the DIV in the outermost part of the picture;
= (); //Create a table with three columns
(); //Put the ALT file on the picture behind the picture
(); //Add click events and put content in the table
this.$().appendChild() //Complete all
}

= {
$:function(objId){
return (objId);
},
$$:function(n){
return (n);
},
createTable:function(){
var table = this.$$('table');
var tr = this.$$('tr');
for(var k=0; k<3; k++) (this.$$('td'));
var tbody = this.$$('tbody');
(tr);
(tbody);
return table;
},
setSpan:function(){
var links = this.$().getElementsByTagName('a');
for(var k=0; k<; k++){
var span = this.$$('span');
((links[k].getElementsByTagName('img')[0].alt));
links[k].appendChild(span);
}
return;
},
setOnclick:function (){
var imgArray = ['left', ,'right'];
var tds = ('td');
for(var k=0; k<; k++){
tds[k].setAttribute('vAlign', 'center');
if(k == 1){
var div = this.$$('div');
var ul = this.$().getElementsByTagName('ul')[0];
(ul);
tds[k].appendChild(div);
continue
}

var img = this.$$('img');
('src', 'https:///attachments/month_0902/'+imgArray[k]+'.gif');
('alt', imgArray[k]);
= 'pointer';
= function (){
var imgBox = ('div')[0];
var ns = ;
var tkey = 500;
if( == 'left'){
var left = setInterval(function(){
= - (tkey * 0.1);
tkey = tkey * 0.9;
if(tkey < 2) clearInterval(left);
},50);
} else {
var right = setInterval(function (){
= + (tkey * 0.1);
tkey = tkey * 0.9;
if(tkey < 2) clearInterval(right);
},50);
}
return;
}
tds[k].appendChild(img);
}
return;
}
}

var test = new ScrollImg('imgBox');
</script>