function getSelectedRadio(buttonGroup) {
   if (buttonGroup[0]) { 
      for (var i=0; i<buttonGroup.length; i++) {
         if (buttonGroup[i].checked) {
            return i
         }
      }
   } else {
      if (buttonGroup.checked) { return 0; } 
   }
   return -1;
} 

function getSelectedRadioValue(buttonGroup) {
   var i = getSelectedRadio(buttonGroup);
   if (i == -1) {
      return "";
   } else {
      if (buttonGroup[i]) { 
         return buttonGroup[i].value;
      } else { 
         return buttonGroup.value;
      }
   }
} 

function getCookieData(cookiename,dataID)
{
var data = get_cookie(cookiename);
if (data.match(dataID))
	{
		var start = data.indexOf(dataID) + dataID.length + 1;
		var end = data.substring(start).indexOf("|")+start;
		thisPiece = data.substring(start,end);
		return thisPiece;
	}
	else
	{ return "cant find " + dataID; }
}

function IsCookie(cookieName) 
{if (get_cookie(cookieName) == null) {return false} else {return true} }

function set_cookie ( name, value, exp_y, exp_m, exp_d, path, domain, secure )
{
  var cookie_string = name + "=" + escape ( value );

  if ( exp_y )
  {
    var expires = new Date ( exp_y, exp_m, exp_d );
    cookie_string += "; expires=" + expires.toGMTString();
  }

  if ( path )
        cookie_string += "; path=" + escape ( path );

  if ( domain )
        cookie_string += "; domain=" + escape ( domain );
  
  if ( secure )
        cookie_string += "; secure";
  
  document.cookie = cookie_string;

}

function get_cookie ( cookie_name )
{
  var results = document.cookie.match ( cookie_name + '=(.*?)(;|$)' );

  if ( results )
    return ( unescape ( results[1] ) );
  else
    return null;
}