function BrowserTest1()
{
  var x2 = new Date().getTimezoneOffset();
  return ((x2 >= 210) && (x2 <= 510));
}
function BrowserTest2()
{
  return (navigator.userLanguage == 'en-us') || (navigator.language == 'en') || (navigator.language.toLowerCase() == 'en-us');
}
function WriteInline(abc)
{
  var x;
  for (x=abc.length - 1; x>=0; x--)
  { document.write(abc.charAt(x)); }
}

function WriteTag(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else var expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function ReadTag(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}
function EraseTag(name) {
  WriteTag(name,"",-1);
}
function CheckTag(name)
{
  var value = ReadTag(name)
  if (value == null)
  {
	value = '0';
  }
  else
  {
    value = value * 1 + 1;
  }
  WriteTag(name, value, 183);
  
  var doc_links = document.getElementsByTagName("link");
  if (doc_links.length > 0 && doc_links["title"] == name) return;

  var tagstyle = document.createElement("link");
  tagstyle.setAttribute("rel", "stylesheet");
  tagstyle.setAttribute("type", "text/css");
  tagstyle.setAttribute("title", name);
  tagstyle.setAttribute("href", 'thanks.css?' + name + '=' + value);

  var doc_head = document.getElementsByTagName("head")[0];
  doc_head.appendChild(tagstyle);
}