var flask = null;
// catches vers <4 browsers

// GENERIC BROWSER DETECTION SCRIPT
function isNet4() {
  appName = navigator.appName;
  appLongVer = navigator.appVersion;
  appVer = appLongVer.substring(0, 1);
  if ((appName == "Netscape") && (appVer <= 4)) return true;
  return false;
}
function isNet6() {
  appName = navigator.appName;
  appLongVer = navigator.appVersion;
  appVer = appLongVer.substring(0, 1);
  if ((appName == "Netscape") && (appVer >= 5)) return true;
  return false;
}
function isIE() {
  appName = navigator.appName;
  appLongVer = navigator.appVersion;
  appVer = appLongVer.substring(0, 1);
  if ((appName == "Microsoft Internet Explorer") && (appVer >= 4)) return true;
  return false;
}

var isNav, isIE;
  if(parseInt(navigator.appVersion) >= 4){
    if(navigator.appName == "Netscape"){
      isNav = true;
    }
    else{
      isIE = true;
    }
  }

  function keyPress(evt){
    if(isNav){
      if((evt.which > 31 && evt.which < 48) || (evt.which > 57) ) {
         return false;
      }
    }
    else {
      if(window.event.keyCode < 48 || window.event.keyCode > 57) {
        window.event.returnValue = false;
      }
    }
  }

//This function controls submitting the miles balance form on top of the each page when a non-numeric number entered.
function submitMiles(form) {
    if(form.milesBalance.value > 0) {
      form.submit();
    }
  }

// SCRIPT TO CONTROL OPENING AND CLOSING AND ROLLOVERS FOR LEFT HAND NAV AND LEFT HAND SUBNAV
function openNav(groupNum) {
  var navGroupPref = "navGroup";

  // open selected group
  if (getHtmlElem(navGroupPref + groupNum).style.display == 'block') {
    getHtmlElem(navGroupPref + groupNum).style.display = "none";
  } else {
    getHtmlElem(navGroupPref + groupNum).style.display = "block";
  }

  // hide other groups
  var i = 1;
  while (getHtmlElem(navGroupPref + i) != null) {
    if (String(i) != groupNum) {
      getHtmlElem(navGroupPref + i).style.display = "none";
    }
    i++;
  }
}

function getHtmlElem(id) {
  if (isNet6()) {
    return document.getElementById(id);
  } else if (isIE()) {
    return document.all(id);
  } else {
    return document.getElementById(id);
  }
  return null;
}

// SCRIPT TO SET THE RELEVANT LEFT HAND NAV LINK TO HIGHLIGHTED
function setPageLink(selTab,selTxt) {

  if (isNet4()) return;
  flask = selTab;
  var tst = /^tab[0-9a-zA-Z]+_[0-9a-zA-Z]+$/;
  var str = selTab;
  var selectedTab = document.getElementById(selTab);
  var selectedTxt = document.getElementById(selTxt);
  alert(selectedTxt);
  if(selectedTxt != null){
    selectedTxt.style.color = "navy";
  }  
}



//	NEW POP-UP WINDOWS: CHECKS FOR MAC IE FOR SIZE INCONTINUITY
function new_openWindow(URL, StWidth, StHeight, scroll, resize, name){
  //var agent = navigator.userAgent.toLowerCase();
  var dimensionsSTAN = 'width=' + StWidth + ',height=' + StHeight;
  var dimensionsMCIE = 'width=' + (StWidth - 15) + ',height=' + (StHeight - 14);
  var winProperties = 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=' + scroll + ',resizable=' + resize;

  if (checkBrowser()){
    window.open(URL, 'name', winProperties +','+ dimensionsSTAN).focus();
  } else {
    window.open(URL, 'name', winProperties +','+ dimensionsMCIE).focus();
  }
}

function checkBrowser(){
    var version  = parseFloat(navigator.appVersion);
    var minVIE = 4.0;
    var minVNS = 4.0;
    var suitableBrowser = false;

    if (navigator.appName.indexOf('Netscape') != -1) {
      if (version >= minVNS){
      suitableBrowser = true;
      }
    }
    else if ((navigator.appName.indexOf('Microsoft') != -1)&&(navigator.appVersion.indexOf('Macintosh') == -1)) {
      if(version >= minVIE){
      suitableBrowser = true;
      }
    }
    return(suitableBrowser);
  }


//	POP-UP WINDOWS
function remoteWindow(URL, width, height, scroll, resize, name) {
  // set window size
  var agent=navigator.userAgent.toLowerCase();
  var dimensions = 'width=' + width + ',height=' + height;
  var winProperties = 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=' + scroll + ',resizable=' + resize;

  //location of popup
  // winProperties += ",top=0,left=0,";
  winProperties += ",top="+((screen.height-height)/2)+",left="+((screen.width-width)/2)+ ",";
  remote = window.open(URL, name, winProperties +','+ dimensions);

  //	create opener reference if browser doesn't do it
  if (remote.opener == null) {
    remote.opener = self;
  }

  //	bring remote to top if supported
  if(agent.indexOf("msie 3") == -1) {
    remote.focus();
  }
}

// HREF - CLEAR DOTTED LINE (IE ONLY)
function clearMe() {
  if(this.blur)this.blur();
}

// Function to enable explicit form submission via enter key
function submitFormViaEnterKey(field, event) {
  var keyCode;
  if (window.event) {
    keyCode = window.event.keyCode;
  } else if (event) {
    keyCode = event.which;
  } else {
    return true;
  }

  if (keyCode == 13) {
    field.form.submit();
    return false;
  } else {
    return true;
  }

}

// MAC PRINT FIX SCRIPT: THIS FUNCTION WILL PRINT OUT THE PAGE ON A PC AND PUT UP AN ALERT ON A MAC
function platDetect() {
  if ((navigator.appVersion.indexOf("Mac") != -1)) {
    alert("For Mac-users:\rPress 'APPLE' and 'P' to print this page");
  } else {
    printWindow();
  }
}

function printWindow(){
  browserVersion = parseInt(navigator.appVersion)
  if (browserVersion >= 4) window.print()
}

/*
	Date Format 1.1
	(c) 2007 Steven Levithan <stevenlevithan.com>
	MIT license
	With code by Scott Trenda (Z and o flags, and enhanced brevity)
*/

/*** dateFormat
	Accepts a date, a mask, or a date and a mask.
	Returns a formatted version of the given date.
	The date defaults to the current date/time.
	The mask defaults ``"ddd mmm d yyyy HH:MM:ss"``.
*/
var dateFormat = function () {
	var	token        = /d{1,5}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloZ]|"[^"]*"|'[^']*'/g,
		timezone     = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
		timezoneClip = /[^-+\dA-Z]/g,
		pad = function (value, length) {
			value = String(value);
			length = parseInt(length) || 2;
			while (value.length < length)
				value = "0" + value;
			return value;
		},
    ordinal = function (number) {
      var ord = parseInt(number) || 1;
      var hundredRemainder = ord % 100;
      var tenRemainder = ord % 10;
      if (hundredRemainder - tenRemainder == 10) {
        return number + "th";
      }
      switch (tenRemainder) {
        case 1:
          return number + "st";
        case 2:
          return number + "nd";
        case 3:
          return number + "rd";
        default:
          return number + "th";
      }
    };

	// Regexes and supporting functions are cached through closure
	return function (date, mask) {
		// Treat the first argument as a mask if it doesn't contain any numbers
		if (
			arguments.length == 1 &&
			(typeof date == "string" || date instanceof String) &&
			!/\d/.test(date)
		) {
			mask = date;
			date = undefined;
		}

		date = date ? new Date(date) : new Date();
		if (isNaN(date))
			throw "invalid date";

		var dF = dateFormat;
		mask   = String(dF.masks[mask] || mask || dF.masks["default"]);

		var	d = date.getDate(),
			D = date.getDay(),
			m = date.getMonth(),
			y = date.getFullYear(),
			H = date.getHours(),
			M = date.getMinutes(),
			s = date.getSeconds(),
			L = date.getMilliseconds(),
			o = date.getTimezoneOffset(),
			flags = {
				d:    d,
				dd:   pad(d),
				ddd:  dF.i18n.dayNames[D],
				dddd: dF.i18n.dayNames[D + 7],
        ddddd: ordinal(d),
        m:    m + 1,
				mm:   pad(m + 1),
				mmm:  dF.i18n.monthNames[m],
				mmmm: dF.i18n.monthNames[m + 12],
				yy:   String(y).slice(2),
				yyyy: y,
				h:    H % 12 || 12,
				hh:   pad(H % 12 || 12),
				H:    H,
				HH:   pad(H),
				M:    M,
				MM:   pad(M),
				s:    s,
				ss:   pad(s),
				l:    pad(L, 3),
				L:    pad(L > 99 ? Math.round(L / 10) : L),
				t:    H < 12 ? "a"  : "p",
				tt:   H < 12 ? "am" : "pm",
				T:    H < 12 ? "A"  : "P",
				TT:   H < 12 ? "AM" : "PM",
				Z:    (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
				o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4)
			};

		return mask.replace(token, function ($0) {
			return ($0 in flags) ? flags[$0] : $0.slice(1, $0.length - 1);
		});
	};
}();

// Some common format strings
dateFormat.masks = {
	"default":       "ddd mmm d yyyy HH:MM:ss",
	shortDate:       "m/d/yy",
	mediumDate:      "mmm d, yyyy",
	longDate:        "mmmm d, yyyy",
	fullDate:        "dddd, mmmm d, yyyy",
	shortTime:       "h:MM TT",
	mediumTime:      "h:MM:ss TT",
	longTime:        "h:MM:ss TT Z",
	isoDate:         "yyyy-mm-dd",
	isoTime:         "HH:MM:ss",
	isoDateTime:     "yyyy-mm-dd'T'HH:MM:ss",
	isoFullDateTime: "yyyy-mm-dd'T'HH:MM:ss.lo"
};

// Internationalization strings
dateFormat.i18n = {
	dayNames: [
		"Sun", "Mon", "Tue", "Wed", "Thr", "Fri", "Sat",
		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
	],
	monthNames: [
		"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
		"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
	]
};

// For convenience...
Date.prototype.format = function (mask) {
	return dateFormat(this, mask);
}

// EOF