window.onload = autofill;

function autofill() {
   var theform = document.getElementById('cformsform');
   if (GetCookie("field_2")) theform.cf_field_2.value = GetCookie("field_2");
   if (GetCookie("field_3")) theform.cf_field_3.value = GetCookie("field_3");
   if (GetCookie("field_4")) theform.cf_field_4.value = GetCookie("field_4");
   if (GetCookie("field_5")) theform.cf_field_5.value = GetCookie("field_5");
   if (GetCookie("field_6")) theform.cf_field_6.value = GetCookie("field_6");
   if (GetCookie("field_7")) theform.cf_field_7.value = GetCookie("field_7");
   
   theform.cf_field_2.onchange = setvalues;
   theform.cf_field_3.onchange = setvalues;
   theform.cf_field_4.onchange = setvalues;
   theform.cf_field_5.onchange = setvalues;
   theform.cf_field_6.onchange = setvalues;
   theform.cf_field_7.onchange = setvalues;
}

function setvalues() {
   var theform = document.getElementById('cformsform');
   SetCookie("field_2", theform.cf_field_2.value);
   SetCookie("field_3", theform.cf_field_3.value);
   SetCookie("field_4", theform.cf_field_4.value);
   SetCookie("field_5", theform.cf_field_5.value);
   SetCookie("field_6", theform.cf_field_6.value);
   SetCookie("field_7", theform.cf_field_7.value);
}

function getCookieVal (offset) {
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
    endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

function FixCookieDate (date) {
  var base = new Date(0);
  var skew = base.getTime(); // dawn of (Unix) time - should be 0
  if (skew > 0)  // Except on the Mac - ahead of its time
    date.setTime (date.getTime() - skew);
}

function GetCookie (name) {
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen) {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
      return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break; 
  }
  return null;
}

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


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";
  }
}