// this function gets the cookie, if it exists
function get_cookie ( cookie_name )
{
  var results = document.cookie.match ( cookie_name + '=(.*?)(;|$)' );

  if ( results )
    return ( unescape ( results[1] ) );
  else
    return null;
}

if(get_cookie('soundon') == null)
{
	document.cookie = "soundon = true;"
}


var onImg = new Array();
onImg["on"] = new Image(54,16);
onImg["off"] = new Image(54,16);
onImg["scope_plus"] = new Image(20,20);
onImg["scope_minus"] = new Image(20,20);
onImg["on"].src = "images/sound_on.gif";
onImg["off"].src = "images/sound_off.gif";
onImg["scope_plus"].src = "images/scope_plus.gif";
onImg["scope_minus"].src = "images/scope_minus.gif";

function selectPicture(image)
{
	
		if(get_cookie('soundon') == "true")
		{
			document.images[image].src = onImg["off"].src;
		}
		else if(get_cookie('soundon') == "false")
		{
			document.images[image].src = onImg["on"].src;
		}
		else
		{
			document.images[image].src = onImg["off"].src;
		}
}

// toggle display of the given div.
function toggleDisplay(divID)
{
	// allow document.all, for older browsers
	var div = (document.getElementById) ? document.getElementById(divID) : 
		  ((document.all) ? document.all(divID) : null);
		div.className = (div.className == "open") ? "closed" : "open";
}

function playsound(soundfile){
	if (get_cookie('soundon') == 'true')
	{
		if (document.all && document.getElementById){
			document.getElementById("soundeffect").src="" //reset first in case of problems
			document.getElementById("soundeffect").src=soundfile
		}
	}
}	
	
function toggleImages(image)
{
		if(get_cookie('soundon') == 'true')
		{
			document.images[image].src = onImg["on"].src;
			document.cookie = 'soundon = false;'
		}
		else if(get_cookie('soundon') == 'false') 
		{
			document.images[image].src = onImg["off"].src;
			document.cookie = 'soundon = true;'
		}
}		

function toggleScope(image)
{
	
		if(document.images[image].src == onImg["scope_minus"].src)
		{
			document.images[image].src = onImg["scope_plus"].src;;
		}
		else 
		{
			document.images[image].src = onImg["scope_minus"].src;
		}	
	
}		

// <!-- This script is based on the javascript code of Roman Feldblum (web.developer@programmer.net) -->
// <!-- Original script : http://javascript.internet.com/forms/format-phone-number.html -->
// <!-- Original script is revised by Eralper Yilmaz (http://www.eralper.com) -->
// <!-- Revised script : http://www.kodyaz.com -->

var zChar = new Array(' ', '(', ')', '-', '.');
var maxphonelength = 13;
var phonevalue1;
var phonevalue2;
var cursorposition;

function ParseForNumber1(object){
phonevalue1 = ParseChar(object.value, zChar);
}
function ParseForNumber2(object){
phonevalue2 = ParseChar(object.value, zChar);
}

function backspacerUP(object,e) {
if(e){
e = e
} else {
e = window.event
}
if(e.which){
var keycode = e.which
} else {
var keycode = e.keyCode
}

ParseForNumber1(object)

if(keycode > 48){
ValidatePhone(object)
}
}

function backspacerDOWN(object,e) {
if(e){
e = e
} else {
e = window.event
}
if(e.which){
var keycode = e.which
} else {
var keycode = e.keyCode
}
ParseForNumber2(object)
}

function GetCursorPosition(){

var t1 = phonevalue1;
var t2 = phonevalue2;
var bool = false
for (i=0; i<t1.length; i++)
{
if (t1.substring(i,1) != t2.substring(i,1)) {
if(!bool) {
cursorposition=i
bool=true
}
}
}
}

function ValidatePhone(object){

var p = phonevalue1

p = p.replace(/[^\d]*/gi,"")

if (p.length < 3) {
object.value=p
} else if(p.length==3){
pp=p;
d4=p.indexOf('(')
d5=p.indexOf(')')
if(d4==-1){
pp="("+pp;
}
if(d5==-1){
pp=pp+")";
}
object.value = pp;
} else if(p.length>3 && p.length < 7){
p ="(" + p;
l30=p.length;
p30=p.substring(0,4);
p30=p30+")"

p31=p.substring(4,l30);
pp=p30+p31;

object.value = pp;

} else if(p.length >= 7){
p ="(" + p;
l30=p.length;
p30=p.substring(0,4);
p30=p30+")"

p31=p.substring(4,l30);
pp=p30+p31;

l40 = pp.length;
p40 = pp.substring(0,8);
p40 = p40 + "-"

p41 = pp.substring(8,l40);
ppp = p40 + p41;

object.value = ppp.substring(0, maxphonelength);
}

GetCursorPosition()

if(cursorposition >= 0){
if (cursorposition == 0) {
cursorposition = 2
} else if (cursorposition <= 2) {
cursorposition = cursorposition + 1
} else if (cursorposition <= 5) {
cursorposition = cursorposition + 2
} else if (cursorposition == 6) {
cursorposition = cursorposition + 2
} else if (cursorposition == 7) {
cursorposition = cursorposition + 4
e1=object.value.indexOf(')')
e2=object.value.indexOf('-')
if (e1>-1 && e2>-1){
if (e2-e1 == 4) {
cursorposition = cursorposition - 1
}
}
} else if (cursorposition < 11) {
cursorposition = cursorposition + 3
} else if (cursorposition == 11) {
cursorposition = cursorposition + 1
} else if (cursorposition >= 12) {
cursorposition = cursorposition
}

var txtRange = object.createTextRange();
txtRange.moveStart( "character", cursorposition);
txtRange.moveEnd( "character", cursorposition - object.value.length);
txtRange.select();
}

}

function ParseChar(sStr, sChar)
{
if (sChar.length == null)
{
zChar = new Array(sChar);
}
else zChar = sChar;

for (i=0; i<zChar.length; i++)
{
sNewStr = "";

var iStart = 0;
var iEnd = sStr.indexOf(sChar[i]);

while (iEnd != -1)
{
sNewStr += sStr.substring(iStart, iEnd);
iStart = iEnd + 1;
iEnd = sStr.indexOf(sChar[i], iStart);
}
sNewStr += sStr.substring(sStr.lastIndexOf(sChar[i]) + 1, sStr.length);

sStr = sNewStr;
}

return sNewStr;
}
	
function ToggleOn(element)
{	

	if (document.getElementById(element).style.display == "none")
	{
		document.getElementById(element).style.display = "block";
	}
	
}
function ToggleOff(element)
{	

	if (document.getElementById(element).style.display == "block")
	{
		document.getElementById(element).style.display = "none";
	}
	
}
	
function textCounter(field, countfield, maxlimit) {
	countfield.value = maxlimit - field.value.length;
	//if (field.value.length > maxlimit) // if too long...trim it!
	//	field.value = field.value.substring(0, maxlimit);
		// otherwise, update 'characters left' counter
	//else 
	//	countfield.value = maxlimit - field.value.length;
}