function get_cookie(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    if (offset != -1) { // if the cookie exists
      offset += search.length
      end = document.cookie.indexOf(";", offset); // set the index of beginning value
      
    if (end == -1) // set the index of the end of cookie value
         end = document.cookie.length;
         returnvalue=unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

function ViewerID()
{
var vwrid, posEndFirstField, posBeginRecentReg;

	vwrid  = 0
	reginp = get_cookie("reginp");
	// parse cookie for viewer ID
	if (reginp !="")
	{
		posEndFirstField = reginp.indexOf("|");
		posBeginRecentReg = reginp.indexOf("-"); 
		if (posBeginRecentReg > posEndFirstField) 
			posBeginRecentReg = 0;
		if (posEndFirstField > 1) 
			vwrid = reginp.substring(0, posBeginRecentReg);
		else
			vwrid = reginp.substring(0, posEndFirstField);
	}
	return(vwrid);
}