function doThis() {

var sP = getPcode();

if (sP.length > 0) {
  getCounter (sP);
  var thedate = new Date();
  thedate.setYear(thedate.getYear() + 1);
  setCookie ("p", sP, thedate, "/", "ndis.us", false);
}
else getCounter ('ndis.us');

return;

}


function getPcode () {

  var i = window.location.href.indexOf('p=') + 2;
  var sPcode = "";
  if (i == 1) return sPcode; 
  else {
    sPcode = window.location.href.substr(i);
    i = sPcode.indexOf("&");
    if (i > -1) sPageName = sPcode.substr(0,i);
    return sPcode;
  }
  
}

function getPageName () {

  var i = 0;
  var sPageName = "";
  i = window.location.href.lastIndexOf("/") + 1;
  sPageName = window.location.href.substr(i);
  i = sPageName.indexOf("?");
  if (i > -1) sPageName = sPageName.substr(0,i);
  if (sPageName == "default.htm") {return "";} else {return sPageName;}
  
}

function getCounter (sDomain) {

  var sCtrSrc;
  var dt = new Date();
  sCtrSrc = "http://imgserve.com/ctr/" + sDomain + "/" + getPageName() + "?" + dt.getTime();
  document.ctrImg.src = sCtrSrc;
  
}

function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}


function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" + 
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}