function setCompare(a,b)
{
 if (a)
 {//прибавить 
 var cc = getCookie('compare')
   if(cc)
   {
   var n = cc +"|"+ b
   }
   else
   {
   var n = b
   }
 setCookie('compare',n,'','/')
 var str = "on"
 }
 else
 {
 //удалить
 dd_arr = new Array ()
 var cc = getCookie('compare')
 mac_arr= cc.split('|')
  var i=0
  var m=0
  while (mac_arr[i])
  {
   if (mac_arr[i] != b)
   {
   dd_arr[m]  = mac_arr[i]
   m++
   }
  i++
  }
 n = dd_arr.join('|')
 setCookie('compare',n,'','/')
 var str = "off"
 }
 
 //alert("***"+str+"***"+b+"***"+n)
}