// Written by Will Fastie, 19 Aug 2005
// Rewritten for Global Abatement 07 Jul 2008
// Revised for generality 10 Jul 2008
// Version for PJH 14 Nov 2009

/*global WF */
WF = {};

WF.constructaddr = function (ename, edomain) {
    var atsign = "@";
    var addr = ename + atsign + edomain;
    return addr;
};

WF.nb = function (ename, edomaincode, edisplay, esubj) {
    var subj = "?subject=";
    var addr = WF.constructaddr(ename, WF.myd(edomaincode));
    var display = addr;
    var atag;
    if (((arguments.length === 4) || (arguments.length === 3)) && (edisplay !== "")) {
        display = edisplay;
    }
    if ((arguments.length === 4) && (esubj !== "")) {
        addr = addr + subj + esubj;
    }
    atag = "<a " +  " href=\"mailto:" + addr + "\">" + display + "</a>";
    document.write(atag);
    return null;
};

// If the code does not match, return the code as the domain name.
WF.myd = function (id) {
    var dn = 'fastie';
    var tldc = '.com';
    var d;
    switch (id) {
    case "fc":
        d = dn + tldc;
        break;
    case "aol":
        d = 'aol' + tldc;
        break;
    case "gm":
        d = 'gmail' + tldc;
        break;
    case "yahoo":
        d = 'yahoo' + tldc;
        break;
    default:
        d = id;
        break;
    }
    return d;
};

WF.isIE6 = function () {
  var myAgt = navigator.userAgent;
  var myAgtIndex;
  var myAgtIE;
  var myIEVer;
  if (myAgt.indexOf('MSIE') !== -1 && myAgt.indexOf('Opera') === -1) { // Is this IE and not Opera?
    myAgtIndex = myAgt.indexOf('MSIE');
    myAgtIE = myAgt.substr(myAgtIndex, 8);
    myIEVer = myAgtIE.substr(5, 8);
    // alert(myIEVer + '\n' + (myIEVer == 6.0) + '\n' + (myIEVer === 6.0));
    if (myIEVer < 6) {
      return true;  // do the same for IE 5.5 as for 6, assume no older browsers out there
    } else if (myIEVer == 6.0) { // need soft comparison here; === returns false
      // need to see if browser is pretending to be 6 (like Opera)
      // for now, just assume it is IE6
      return true;
    } else {
      return false;  // anything > 6 is okay
    }
  } else {  // it's not IE
    return false;
  }
};