function show_instructions(product_type, browser_type) {
  var url = '';
  if (product_type == 'REG') {
    if (browser_type == 'IE') {
      url = 'REG-ie-instructions.html';
    }
    else {
      url = 'REG-ff-instructions.html';
    }
  }
  else {
    if (browser_type == 'IE') {
      url = 'ie-instructions.html';
    }
    else {
      url = 'ff-instructions.html';
    }
  }

  var loc = new String(document.location);
	var params = loc.toQueryParams();
  
  if (params['date']) {
     url = url + '?date=' + params['date'];
  }
  if (params['datetime']) {
     url = url + '?datetime=' + params['datetime'];
  }

  setTimeout("window.location='" + url + "'",2000);
  return true;
}