function getCookie( name ) {
  var start = document.cookie.indexOf( name + "=" );
  var len = start + name.length + 1;
  if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
    return null;
  }
  if ( start == -1 ) return null;
  var end = document.cookie.indexOf( ";", len );
  if ( end == -1 ) end = document.cookie.length;
  return unescape( document.cookie.substring( len, end ) );
}

function setCookie( name, value, expires) {
  var today = new Date();
  today.setTime( today.getTime() );
  if ( expires ) {
    expires = expires * 1000 * 60 * 60 * 24;
  }
  var expires_date = new Date( today.getTime() + (expires) );
  document.cookie = name+"="+escape( value ) +
    ( ( expires ) ? ";expires="+expires_date.toGMTString() : "" ) ;
    
}

function deleteCookie(name) {
  if ( getCookie( name ) ) document.cookie = name + "="  +
    ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}


function formSubmitted(uid){
affiliate=getCookie('affiliate');
if (!affiliate){
affiliate=0;
}
keyword=getCookie('keyword');
if (!keyword){
keyword='';
}
document.paypalForm.custom.value='<custom><affiliate>' + affiliate + '</affiliate><keyword>' + keyword + '</keyword><uid>' + uid + '</uid></custom>';
}