function getCookie(c_name)
{
 if (document.cookie.length > 0)
 {
  c_start = document.cookie.indexOf(c_name + "=")
  if (c_start != -1)
  { 
   c_start=c_start + c_name.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 null
}


function SetCookie (name, value, expires) {
var argv = SetCookie.arguments; 
var argc = SetCookie.arguments.length; 
var expires = (argc > 2) ? argv[2] : null; 
var path = (argc > 3) ? argv[3] : null; 
var domain = (argc > 4) ? argv[4] : null; 
var secure = (argc > 5) ? argv[5] : false;
var exp = new Date(); 
exp.setTime(exp.getTime() + (expires*24*60*60*1000)); 
document.cookie = name + "=" + escape (value) + 
((expires == null) ? "" : ("; expires=" + exp.toGMTString())) + 
// ((path == null) ? "" : ("; path=" + path)) + 
"; path=/" + 
((domain == null) ? "" : ("; domain=" + domain)) + 
((secure == true) ? "; secure" : "");
}


function addselection(id)
{
 selection = getCookie('selection')
 if (selection!=null)
 {
  if (selection.indexOf(id) == -1)
  {
   SetCookie('selection',selection+';'+id,500)
   alert("The announcement "+id+" has been added to your selection")
  }
  else
  {
   alert("The announcement "+id+" already exists in your selection")
  }
 }
 else 
 {
  SetCookie('selection',';'+id,500)
  alert("The announcement "+id+" has been added to your selection")
 }
}


function rmselection(id)
{
 selection = getCookie('selection')
 if ( (selection!=null) && (selection.indexOf(id) != -1) )
 {
  var selection = selection.toString();
  var reg1 = new RegExp(';'+id, "gi");
  selection = selection.replace(reg1,"");
  //alert(selection);
  SetCookie('selection',selection,500);
  alert("The announcement "+id+" has been withdrawn from your selection");
  document.location=document.location;
 }
}

// selection = getCookie('selection');
// alert(selection);