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〗 </strong> </font> </td> </tr> "+
" <tr> <td> <center> "+
" ";
for(key in item_arr){
if (key){
//元素形如：2132|我的产品测试
tmp_info_arr=item_arr[key].split( "| ");
pid = tmp_info_arr[0];
names= tmp_info_arr[1];
if (pid && names){
ft = " <font color=red size=1> | </font> <br> <input type=button name=name value= ' "+names+ " ' onclick=\ "del( ' "+pid+ " ', ' "+names+ " ')\ " style= 'border:1px solid;border-color:red ;background-color:white;height:24;width:150;cursor:hand;color: 'black '; '> <input type= 'hidden ' name= 'pro_id[] ' value= ' "+pid+ " '> <br> ";
floatstr = floatstr+ft;}}}
floatstr = floatstr + " <input type= 'hidden ' name= 'subcatid ' value= ' "+readCookie( "subcat ")+ " '> <br> <a href= '# ' href_cetemp= '# ' href_cetemp= '# ' onclick= 'empty() '> <font color=blue> 清空 </font> </a> <a href=# onclick= 'hide_layer(float) '> <font color=blue> 隐藏 </font> </a> </center> </td> </tr> "+
" <tr> <td align=center> <input type= 'button ' value= '产品比较 ' name= 'submits ' onclick=\ "comparecheck( 'bijiao.asp ');\ " style= 'cursor:hand;width:100px '> "+
" </td> </tr> </form> </table> ";
float.style.left= '620px ';
float.innerHTML = floatstr;}
function empty(){
writeCookie( "subcat ", " ");
writeCookie( "pro_str ", " ");
redraw();}
function comparecheck(url){
obj=document.compare;
if(url){
obj.action=url;}
mark=0;
for(k=0;k <obj.elements.length;k++){
if (obj.elements[k].name== "pro_id[] " && obj.elements[k].value!= " "){
if (obj.elements[k].value.indexOf( "undefined ")!=(-1)){
obj.elements[k].value=obj.elements[k].value.replace( "undefined ", " ");}
mark++;}}
if(mark <2){
alert ( '系统提示：请至少选择两款产品进行比较！！！\r\n选择方法：点击对应产品名称前的选择框即可添加该产品到产品对比篮。\r\n删除方法：点击比较篮中的产品名称即可完成去除比较篮中相应的产品。 '); }
else{
obj.submit();}}
//pro_str:产品字符串
//subcat :子类字符串
function change_select(pid,name){
//读出产品串后用函数返回一个数组
tmp=readCookie( "pro_str ");
//alert(tmp+ "== "+pid+ "=== "+tmp.indexOf(pid));
if (tmp.indexOf(pid)!=-1){
del(pid,name);}
else{
add(pid,name);}}
function add(pid,names){
//读出产品串后用函数返回一个数组
tmp=readCookie( "pro_str ");
//检查数组的个数（即选择产品的个数）
tmp_arr=stringToArray(tmp, "### ");
if (tmp_arr.length <5){
//看是否有相同的产品已被选择
//alert(tmp+ "== "+pid+ "=== "+tmp.indexOf(pid));
if (tmp.indexOf(pid)!=-1){
alert( "（ "+names+ "）已经被选择了！！！ ");}
else{
writeCookie( "pro_str ",tmp+pid+ "| "+names+ "### ");}}
else{
alert( "对不起，您只能一次最多选择4款产品进行比较！！！ ");}
redraw();
writeCookie( "hid_float ", 0, 100);}
//用指定的字符串div切开str字符串后返回一个数组
function stringToArray(str,div){
objArr=str.split(div);
return objArr;}
function del(pid,name){
tmp=readCookie( "pro_str ");
writeCookie( "pro_str ",tmp.replace(pid+ "| "+name+ "### "));
tmp=readCookie( "pro_str ");
//如果没有产品了，自动清空subcat
if (tmp== " " || tmp==null){
writeCookie( "subcat ", " ");}
redraw();}
redraw();
function hide_layer(id){
writeCookie( "hid_float ", 1, 100);
id.style.left= '-1000px ';}
if (readCookie( "hid_float ")==1){
hide_layer(float);}
else{
tmp=readCookie( "pro_str ");
if (tmp== " ")
hide_layer(float);}
//-->
</script>
[解决办法]
10分... 果然高！
