java script shopping cart implementation with cookies

[nafe]

Am trying to implement a shopping cart in java script which is using cookies.
I have a form consisting of itemID,quantity and price. these are details that the user has selected.
below is the code with two functions setcookie called from a button click event and getcookie called from link click event.But nothing is happening.Could anyone help me to figue what is the problem with the code.the others are comments after i discovered its not working,i was trying others.

<script language="JavaScript">
//global variables;
var itemarray = new array
itemarray[0]=itemid
itemarray[1]=quantity
itemarray[2]=price
 
 function setcookie(ccookie,itemarray);
{
document.cookie= ccookie + "="  + escape(itemarray);
var scookie =ccookie;
var itemID = new string(itemarray[0]);
//document.cookie=scookie;
var start= scookie.indexof(itemid + "&");
If start>==0 {
var end =scookie.indexof("£",start+1)+1;
if (itemarray[1] >0) {
 
        sCookie = sCookie.replace(sCookie.slice(Start,End), itemID + “&” + itemarray[1] + "& "itemarray[2] "£");
 
              } 
    else {
 
        //new item quantity  is 0 so remove it from basket
 
 
        sCookie = sCookie.replace (sCookie.slice(Start,End), “”);
 
          }
 
}
 
else {
 
//item not in basket already
 
  sCookie = sCookie.concat(itemID + “&”, itemarray[1] + "&: itemarray[2] “£”);
 
}
 
return sCookie;
 
}
 
Functio getcookie(scookie)
{
//var rcookie = document.cookie;
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(scookie + "=")
  if (c_start!=-1)
    { 
    c_start=c_start + scookie.length+1 
    c_end=document.cookie.indexOf(";",c_start)
    if (c_end==-1) c_end=document.cookie.length
    return unescape(document.cookie.substring(c_start,c_end))
    } 
  }
return ""
 
//var start = rcookie.indexof(itemid + "&");
//var end =rcookie.indexof("&",start+1);
//var citem =rcookie.slice(start,--end);
//var itemarray=citem.split("&");
//return itemarray
//}
</script>

[acoder]

See how you can write cookie code. JavaScript is case-sensitive - you can't mix and match.