// JavaScript Document
var timeStart = new Boolean(false);
var timeOutID;
var timeConstant = 2000;


function switchDiv(id,classID)
{
	document.getElementById(id).className = classID;
	document.getElementById(id).style.cursor = "pointer";
}

function showNav(id) //,classID
{
	if (timeStart == true)
	{
		clearInterval(timeOutID);
		timeStart = false;
	}
	document.getElementById(id).style.display = "block";
//	document.getElementById(id).className = classID;
	document.getElementById(id).style.cursor = "pointer";
	
	timeOutID = setInterval('clearMenu()',timeConstant);
	timeStart = true;
}

function hideNav(id) //,classID
{
	stopTimer();
	document.getElementById(id).style.display = "none";
//	document.getElementById(id).className = classID;
}

function clearMenu()
{
	clearInterval(timeOutID);
	timeStart = false;
}

function stopTimer()
{
	clearInterval(timeOutID);
	timeStart = false;
}

function startTimer()
{
	if (timeStart == true)
	{
		clearInterval(timeOutID);
		timeStart = false;
	}	
	timeOutID = setInterval('clearMenu()',timeConstant);
	timeStart = true;
}

//function to print page
function printPage()
{
	window.print();
}

//function to email page
function mailPage()
{
  mail_str = "mailto:?subject= " + document.title;
  mail_str += "&body= I recommend you read this -- " + document.title;
  mail_str += ". You should check this out at, " + location.href; 
  location.href = mail_str;
}

//functio to add to favourites
function addFav()
{
	window.external.AddFavorite(location.href, document.title);
}
function fontChange(fnt)
{
	document.getElementById('mainContent').style.fontSize = fnt;
}
function imgOpen(url)
{
	window.open(url,'','scrollbars=yes,resizable=yes,toolbars=no,menu=no,outerWidth=800,outerHeight=600');
}

function openNote(url)
{
	window.open(url,'','scrollbars=yes,resizable=yes,toolbars=no,menu=no');
}
function openWin(url)
{
	window.open(url,'','scrollbars=yes,resizable=yes,toolbars=no,menu=no');
}

// Left Navigation functions
function showDis(id)
{
	document.getElementById('dis').style.display = "block";
	document.getElementById('hidenav').style.display = "none";
}
function hideDis(id)
{
	document.getElementById('dis').style.display = "none";
	document.getElementById('hidenav').style.display = "block";
}

/* random banner image script */
var myImages = new Array();

myImages[0] = 'images/banner1_pic1.jpg';
myImages[1] = 'images/banner1_pic2.jpg';
myImages[2] = 'images/banner1_pic3.jpg';
myImages[3] = 'images/banner1_pic4.jpg';
myImages[4] = 'images/banner1_pic5.jpg';

function showImageOne(){
	var td = document.getElementById('banner1');
	var index = Math.floor(Math.random() * myImages.length);
	
	td.style.backgroundImage = "url(" + myImages[index] + ")";
}

/* random banner image script */
var myImages2 = new Array();

myImages2[0] = 'images/banner2_pic1.jpg';
myImages2[1] = 'images/banner2_pic2.jpg';
myImages2[2] = 'images/banner2_pic3.jpg';
myImages2[3] = 'images/banner2_pic4.jpg';
myImages2[4] = 'images/banner2_pic5.jpg';
myImages2[5] = 'images/banner2_pic6.jpg';
myImages2[6] = 'images/banner2_pic7.jpg';
myImages2[7] = 'images/banner2_pic8.jpg';
myImages2[8] = 'images/banner2_pic9.jpg';
myImages2[9] = 'images/banner2_pic10.jpg';
myImages2[10] = 'images/banner2_pic11.jpg';
myImages2[11] = 'images/banner2_pic12.jpg';
myImages2[12] = 'images/banner2_pic13.jpg';
myImages2[13] = 'images/banner2_pic14.jpg';
myImages2[14] = 'images/banner2_pic15.jpg';
myImages2[15] = 'images/banner2_pic16.jpg';
myImages2[16] = 'images/banner2_pic17.jpg';
myImages2[17] = 'images/banner2_pic18.jpg';
myImages2[18] = 'images/banner2_pic19.jpg';
myImages2[19] = 'images/banner2_pic20.jpg';



function showImageTwo(){
	var td = document.getElementById('banner2');
	var index = Math.floor(Math.random() * myImages2.length);
	
	td.style.backgroundImage = "url(" + myImages2[index] + ")";
}

/* random banner image script */
var myImages3 = new Array();

myImages3[0] = 'images/banner3_pic1.jpg';
myImages3[1] = 'images/banner3_pic2.jpg';
myImages3[2] = 'images/banner3_pic3.jpg';
myImages3[3] = 'images/banner3_pic4.jpg';
myImages3[4] = 'images/banner3_pic5.jpg';
myImages3[5] = 'images/banner3_pic6.jpg';
myImages3[6] = 'images/banner3_pic7.jpg';
myImages3[7] = 'images/banner3_pic8.jpg';
myImages3[8] = 'images/banner3_pic9.jpg';
myImages3[9] = 'images/banner3_pic10.jpg';


function showImageThree(){
	var td = document.getElementById('banner3');
	var index = Math.floor(Math.random() * myImages3.length);
	
	td.style.backgroundImage = "url(" + myImages3[index] + ")";
}