高分 求IT类网站的产品比较代码
谁有这种代码给点点哈，我以前电脑中存的有，但是中毒后被清除了，谁能提供一下


演示，


  罗列出20个产品型号，选中其中3个或者2个进行产品详细比对，电脑类网站全部有这种，

<LI> <input   name= "than "   type= "checkbox "   value= " <%=rs( "number ")%> "   class= "input_than "/> </li>

      PS：我就是不知道如何将这种编码如何传递和保存。谁能提示一下，谢谢了哈


前日寻得一段代码，但是有错误，对对比页面不知道怎么写。谁提示一下，代码演示如下

： <script   LANGUAGE= "JavaScript ">
<!--
        document.write( ' <div   id= "float "   style= "position:absolute;left:5px;top:200;filter:alpha(opacity=50);z-index:99;width:140; "   align=center   dir= "rtl "> </div> ');
if(typeof(doc_ad_array)== " "){
var   doc_ad_array   =   new   Array();}
function   readCookie(name){
var   cookieValue   =   " ";
var   search   =   name   +   "= ";
if(document.cookie.length   >   0){  
offset   =   document.cookie.indexOf(search);
if   (offset   !=   -1){  
offset   +=   search.length;
end   =   document.cookie.indexOf( "; ",   offset);
if   (end   ==   -1)   end   =   document.cookie.length;
cookieValue   =   unescape(document.cookie.substring(offset,   end))}}
return   cookieValue;}
function   writeCookie(name,   value,   hours){
var   expire   =   " ";
if(hours   !=   null){
expire   =   new   Date((new   Date()).getTime()   +   hours   *   3600000);
expire   =   ";   expires= "   +   expire.toGMTString();}
document.cookie   =   name   +   "= "   +   escape(value)   +   expire;}
lastScrollY   =   0;
function   heartBeat(){
diffY               =   document.body.scrollTop;            
percent   =.1*(diffY-lastScrollY);
if(percent> 0)  
percent   =   Math.ceil(percent);
else  
percent   =   Math.floor(percent);
document.all.float.style.pixelTop+=   percent;
lastScrollY   =   lastScrollY+percent;}
window.setInterval( "heartBeat() ",1);
function   hide(){
obj=document.getElementById( "float ");
obj.style.display= 'none ';}
function   redraw(){        
heartBeat();
tmp=readCookie( "pro_str ");  
item_arr=tmp.split( "### ");
floatstr   =   " <table   height=100%   width=100%   border=0   bgcolor= '#ffffff '> "+
                                                  " <form   method= 'post '       name= 'compare '   target= '_blank '> "+
                                                  " <tr> <td   align=center   height=26> <font   color=red> <strong> 〖产品比较篮〗