var prefsLoaded = false;
var currentFontSize = 12;
var currentFontType = 1;
var currentStyle = "White";
var currentWidth = 990;
function revertStyles(){
	currentFontType = 1;
	setFontFace(1);
	
	currentFontSize = 12;
	changeFontSize(0);
	
	currentStyle = "White";
	setColor("White");
	
	currentWidth = 990;
	setWidth(990);
}
function toggleColors(){
	if(currentStyle == "White"){
		setColor("Black");
	}else{
		setColor("White");
	}
}
function setColor(color){
	d=new Date();
	flash=Math.round(Math.random()*d.getTime());
	if(color != "White"){
		document.body.className = 'Retro';
		currentStyle = "Black";
	}else{
		document.body.className = '';
		currentStyle = "White";
	}
}
function toggleWidth(){
	currentWidth = parseInt(currentWidth);
	var newWidth = 990;
	if(currentWidth == 990){
		newWidth = 1200;
	}
	setWidth(newWidth);
	currentWidth = newWidth;
}
function setWidth(width){
	if(width != 990){
		newWidth = 1200;
		document.body.style.width = '90%';
	}else{
		document.body.style.width = '990px';
	}
}
function changeFontSize(sizeDifference){
	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference);

	if(currentFontType == 1){
		if(currentFontSize > 18){
			currentFontSize = 18;
		}else if(currentFontSize < 8){
			currentFontSize = 8;
		}
	}else{
		if(currentFontSize > 23){
			currentFontSize = 23;
		}else if(currentFontSize < 8){
			currentFontSize = 8;
		}
	}
	setFontSize(currentFontSize);
};
function setFontSize(fontSize){
	var stObj = (document.getElementById) ? document.getElementById('ContentArea') : document.all('ContentArea');
	stObj.style.fontSize = fontSize + 'px';
};
function toggleSerif(){
	currentFontType = parseInt(currentFontType);
	if(currentFontType == 1){
		currentFontType = 2;
	}else{
		currentFontType = 1;
	}
	setFontFace(currentFontType);
};
function setFontFace(fontType){
	var stObj = (document.getElementById) ? document.getElementById('ContentArea') : document.all('ContentArea');
	if(fontType == 2){
		stObj.style.fontFamily = 'georgia,times,times new roman,serif';
		changeFontSize(1);
	}else{
		stObj.style.fontFamily = 'verdana,geneva,arial,helvetica,sans-serif';
		changeFontSize(-1);
	}
}
function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
};

function readCookie(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;
};

window.onload = setUserOptions;

function setUserOptions(){
	if(!prefsLoaded){
		cookie = readCookie("fontFace");
		currentFontType = cookie ? cookie : 1;
		setFontFace(currentFontType);

		cookie = readCookie("fontSize");
		currentFontSize = cookie ? cookie : 12;
		setFontSize(currentFontSize);
		
		cookie = readCookie("pageWidth");
		currentWidth = cookie ? cookie : 990;
		setWidth(currentWidth);
		
		cookie = readCookie("pageColor");
		currentStyle = cookie ? cookie : "White";
		setColor(currentStyle);

		prefsLoaded = true;
	}

}

window.onunload = saveSettings;

function saveSettings()
{
  createCookie("fontSize", currentFontSize, 365);
  createCookie("fontFace", currentFontType, 365);
  createCookie("pageWidth", currentWidth, 365);
  createCookie("pageColor", currentStyle, 365);
}

function popupImage(url, x, y, scroll)
{
  ua   = window.navigator.userAgent;
  ns   = (document.layers) ? 1 : 0;
  mz   = (ua.indexOf("zilla") >= 0) ? 1 : 0;
  pcie = (ua.indexOf( "MSIE " ) >= 0 && ua.indexOf("Win") >= 0) ? 1 : 0;

  // Grrr...
  if(ns || pcie || mz) { x += 15; y += 15; }
  if(mz) { x += 10; y += 10; } 

  noise = Math.round((Math.random() * 10000) + 1);

  pictureWindow = open(url, "pictureWindow" + noise, "width=" + x + ",height=" + y + ",scrollbars=" + ((scroll) ? "yes" : "no") + ",status=no,toolbar=no,resizable=yes");

  return false;
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImages() {
var preloadFlag = false;
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}
function clickclear(thisfield, defaulttext) {
if (thisfield.value == defaulttext) {
thisfield.value = "";
}
}
function clickrecall(thisfield, defaulttext) {
if (thisfield.value == "") {
thisfield.value = defaulttext;
}
}

// ----------------------------------------------------------------------
// Javascript form validation routines.
// Author: Stephen Poley
//
// Simple routines to quickly pick up obvious typos.
// All validation routines return true if executed by an older browser:
// in this case validation must be left to the server.
//
// Update Aug 2004: have tested that IE 5.0 and IE 5.5 both support DOM model
// sufficiently well, so innerHTML option removed (redundant).
//
// Update Jun 2005: discovered that reason IE wasn't setting focus was
// due to an IE timing bug. Added 0.1 sec delay to fix.
// ----------------------------------------------------------------------

var nbsp = 160;    // non-breaking space char
var node_text = 3; // DOM text node-type
var emptyString = /^\s*$/
var glb_vfld;      // retain vfld for timer thread

// -----------------------------------------
//                  trim
// Trim leading/trailing whitespace off string
// -----------------------------------------

function trim(str)
{
  return str.replace(/^\s+|\s+$/g, '')
};


// -----------------------------------------
//                  setfocus
// Delayed focus setting to get around IE bug
// -----------------------------------------

function setFocusDelayed(vfld)
{
  glb_vfld.focus()
}

function setfocus(vfld)
{
  glb_vfld = vfld;
  setTimeout( 'setFocusDelayed()', 100 );
}


// -----------------------------------------
//                  msg
// Display warn/error message in HTML element
// commonCheck routine must have previously been called
// -----------------------------------------

function msg(fld,     // id of element to display message in
             msgtype, // class to give element ("warn" or "error")
             message) // string to display
{
  // setting an empty string can give problems if later set to a 
  // non-empty string, so ensure a space present. (For Mozilla and Opera one could 
  // simply use a space, but IE demands something more, like a non-breaking space.)
  var dispmessage;
  if (emptyString.test(message)) 
    dispmessage = String.fromCharCode(nbsp);    
  else  
    dispmessage = message;

  var elem = document.getElementById(fld);
  elem.firstChild.nodeValue = dispmessage;  
  
  elem.className = msgtype;   // set the CSS class to adjust appearance of message
};

// -----------------------------------------
//            commonCheck
// Common code for all validation routines to:
// (a) check for older / less-equipped browsers
// (b) check if empty fields are required
// Returns true (validation passed), 
//         false (validation failed) or 
//         proceed (don't know yet)
// -----------------------------------------

var proceed = 2;  

function commonCheck    (vfld,   // element to be validated
                         ifld,   // id of element to receive info/error msg
                         reqd)   // true if required
{
  if (!document.getElementById) 
    return true;  // not available on this browser - leave validation to the server
  var elem = document.getElementById(ifld);
  if (!elem.firstChild)
    return true;  // not available on this browser 
  if (elem.firstChild.nodeType != node_text)
    return true;  // ifld is wrong type of node  

  if (emptyString.test(vfld.value)) {
    if (reqd) {
      msg (ifld, "error", "ERROR: required");  
      setfocus(vfld);
      return false;
    }
    else {
      msg (ifld, "warn", "");   // OK
      return true;  
    }
  }
  return proceed;
}

// -----------------------------------------
//            validatePresent
// Validate if something has been entered
// Returns true if so 
// -----------------------------------------

function validatePresent(vfld,   // element to be validated
                         ifld )  // id of element to receive info/error msg
{
  var stat = commonCheck (vfld, ifld, true);
  if (stat != proceed) return stat;

  msg (ifld, "warn", "");  
  return true;
};

// -----------------------------------------
//               validateEmail
// Validate if e-mail address
// Returns true if so (and also if could not be executed because of old browser)
// -----------------------------------------

function validateEmail  (vfld,   // element to be validated
                         ifld,   // id of element to receive info/error msg
                         reqd)   // true if required
{
  var stat = commonCheck (vfld, ifld, reqd);
  if (stat != proceed) return stat;

  var tfld = trim(vfld.value);  // value of field with whitespace trimmed off
  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/
  if (!email.test(tfld)) {
    msg (ifld, "error", "ERROR: not a valid e-mail address");
    setfocus(vfld);
    return false;
  }

  var email2 = /^[A-Za-z][\w.-]+@\w[\w.-]+\.[\w.-]*[A-Za-z][A-Za-z]$/
  if (!email2.test(tfld)) 
    msg (ifld, "warn", "Unusual e-mail address - check if correct");
  else
    msg (ifld, "warn", "");
  return true;
};


// -----------------------------------------
//            validateTelnr
// Validate telephone number
// Returns true if so (and also if could not be executed because of old browser)
// Permits spaces, hyphens, brackets and leading +
// -----------------------------------------

function validateTelnr  (vfld,   // element to be validated
                         ifld,   // id of element to receive info/error msg
                         reqd)   // true if required
{
  var stat = commonCheck (vfld, ifld, reqd);
  if (stat != proceed) return stat;

  var tfld = trim(vfld.value);  // value of field with whitespace trimmed off
  var telnr = /^\+?[0-9 ()-]+[0-9]$/
  if (!telnr.test(tfld)) {
    msg (ifld, "error", "ERROR: not a valid telephone number. Characters permitted are digits, space ()- and leading +");
    setfocus(vfld);
    return false;
  }

  var numdigits = 0;
  for (var j=0; j<tfld.length; j++)
    if (tfld.charAt(j)>='0' && tfld.charAt(j)<='9') numdigits++;

  if (numdigits<6) {
    msg (ifld, "error", "ERROR: " + numdigits + " digits - too short");
    setfocus(vfld);
    return false;
  }

  if (numdigits>14)
    msg (ifld, "warn", numdigits + " digits - check if correct");
  else { 
    if (numdigits<10)
      msg (ifld, "warn", "Only " + numdigits + " digits - check if correct");
    else
      msg (ifld, "warn", "");
  }
  return true;
};

// -----------------------------------------
//             validateAge
// Validate person's age
// Returns true if OK 
// -----------------------------------------

function validateAge    (vfld,   // element to be validated
                         ifld,   // id of element to receive info/error msg
                         reqd)   // true if required
{
  var stat = commonCheck (vfld, ifld, reqd);
  if (stat != proceed) return stat;

  var tfld = trim(vfld.value);
  var ageRE = /^[0-9]{1,3}$/
  if (!ageRE.test(tfld)) {
    msg (ifld, "error", "ERROR: not a valid age");
    setfocus(vfld);
    return false;
  }

  if (tfld>=200) {
    msg (ifld, "error", "ERROR: not a valid age");
    setfocus(vfld);
    return false;
  }

  if (tfld>110) msg (ifld, "warn", "Older than 110: check correct");
  else {
    if (tfld<7) msg (ifld, "warn", "Bit young for this, aren't you?");
    else        msg (ifld, "warn", "");
  }
  return true;
};
function cancel() {
	 history.go(-1);
}
function gohere(gotoURL) {
	 window.location = gotoURL;	
}
function hov(loc,cls){
   if(loc.className)
      loc.className=cls;
}
function NewWindow(mypage, myname, w, h) {
var winl = (screen.width - w) / 2;

var wint = (screen.height - h) / 2;

winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',resizable,scrollbars,toolbar'

win = window.open(mypage, myname, winprops)

if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }

}