function checkOperaVersion(){
	if(navigator.userAgent.indexOf("Opera")!=-1){
		var versionindex=navigator.userAgent.indexOf("Opera")+6
		if(parseInt(navigator.userAgent.charAt(versionindex))>=8){
			document.getElementById("watermark-image").style.backgroundImage='none';
			document.getElementById("watermark").style.display='none';
		}
	}
}
function twoColGetHeight(){
	var d=document;
	var box=new Array("page-content","local-nav-menu");
	for(x=0; x<box.length; x++){
		h=d.getElementById(box[x]).offsetHeight;
		for(y=0;y<box.length;y++){
			test_h=d.getElementById(box[y]).offsetHeight;
			if(h<test_h) h=test_h;
		}
	}
	var box=new Array("page-content-wide","local-nav-menu-bar");
	for(x=0;x<box.length;x++)d.getElementById(box[x]).style.height=h+20+"px";
}
function twoColImgGetHeight(){
	var d=document;
	var imageHeight=d.getElementById("index2ImageList").offsetHeight;
	var box=new Array("page-content","local-nav-menu");
	for(x=0; x<box.length; x++){
		h=d.getElementById(box[x]).offsetHeight;
		for(y=0;y<box.length;y++){
			test_h=d.getElementById(box[y]).offsetHeight;
			if(h<test_h) h=test_h;
		}
	}
	var box=new Array("page-content-wide","local-nav-menu-bar");
	for(x=0;x<box.length;x++)d.getElementById(box[x]).style.height=h+imageHeight+20+"px";
	d.getElementById("footer").top=h+imageHeight+20+"px";
}
function threeColGetHeight(){
	var d=document;
	var box=new Array("site-nav-menu","page-content","local-nav-menu");
	for(x=0;x<box.length;x++){
		h=d.getElementById(box[x]).offsetHeight;
		for(y=0;y<box.length;y++){
			test_h=d.getElementById(box[y]).offsetHeight;
		if(h<test_h)h=test_h;
		}
	}
	var box=new Array("site-nav-menu-bar-index","page-content-narrow-index","local-nav-menu-bar-index");
	for(x=0;x<box.length;x++)d.getElementById(box[x]).style.height=h+20+"px";
}
function threeColImgGetHeight(){
	var d=document;
	var box=new Array("site-nav-menu","page-content-all","local-nav-menu");
	for(x=0;x<box.length;x++){
		h=d.getElementById(box[x]).offsetHeight;
		for(y=0;y<box.length;y++){
			test_h=d.getElementById(box[y]).offsetHeight;
			if(h<test_h)h=test_h;
		}
	}
	var box=new Array("site-nav-menu-bar-index","page-content-narrow-index","local-nav-menu-bar-index");
	for(x=0;x<box.length;x++){
		if(box[x]=="page-content-narrow-index") {
			h=h+10;
		}
		d.getElementById(box[x]).style.height=h+"px";
	}
		
}
function threeColImgRightGetHeight(){
	var d=document;
	var imageHeight=d.getElementById("index2ImageList").offsetHeight;
	var box=new Array("site-nav-menu","page-content","local-nav-menu");
	for(x=0;x<box.length;x++){
		h=d.getElementById(box[x]).offsetHeight;
		for(y=0;y<box.length;y++){
			test_h=d.getElementById(box[y]).offsetHeight;
		if(h<test_h)h=test_h;
		}
	}
	var box=new Array("site-nav-menu-bar","page-content-narrow","local-nav-menu-bar");
	for(x=0;x<box.length;x++)d.getElementById(box[x]).style.height=h+imageHeight+20+"px";
	d.getElementById("footer").top=h+imageHeight+20+"px";
	d.getElementById("site-nav-menu-bar").style.height=h+imageHeight+20+"px";
}
function changeFontSize(x,cols,img){
	if(x==1){
		fs=fs*1.2;
	}
	else{
		fs=fs*0.9;
	}
	document.getElementById("page-content").style.fontSize=fs+"em";
	if(cols==3 & img==1){
		threeColImgGetHeight();
	}
	else if(cols==3 & img==0){
		threeColGetHeight();
	}
	else if(cols==3 & img==2){
		threeColImgRightGetHeight();
	}
	else if(cols==2 & img==1){
		twoColImgGetHeight();
	}
	else if(cols==2 & img==0){
		twoColGetHeight();
	}
}

function checkNullSearch(){
	if(document.forms[0].words.value==""){
		return false;
	}
	else{
		document.forms[0].submit();
	}
}
function MM_swapImgRestore() { //v3.0
	var i, x, a = document.MM_sr;
	for (i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++)
		x.src = x.oSrc;
}

function MM_preloadImages() { //v3.0
	var d = document;
	if (d.images) {
		if (!d.MM_p) 
			d.MM_p = new Array();
	  	var i, j = d.MM_p.length, a = MM_preloadImages.arguments;
	  	for (i = 0; i < a.length; i++)
			if (a[i].indexOf("#") != 0) {
				d.MM_p[j] = new Image;
				d.MM_p[j++].src = a[i];
			}
	}
}

function MM_findObj(n, d) { //v4.01
	var p, i, x;
	if (!d) 
		d = document; 
	if ((p = n.indexOf("?")) > 0 && parent.frames.length) {
		d = parent.frames[n.substring(p + 1)].document;
		n = n.substring(0, p);
	}
	if (!(x = d[n]) && d.all)
		x = d.all[n];
	for (i = 0; !x && i < d.forms.length; i++)
		x = d.forms[i][n];
	for (i = 0; !x && d.layers && i < d.layers.length; i++)
		x = MM_findObj(n, d.layers[i].document);
	if (!x && d.getElementById)
		x = d.getElementById(n);
	return x;
}

function MM_swapImage() { //v3.0
  var i, j = 0, x, a = MM_swapImage.arguments;
  document.MM_sr = new Array; 
  for (i = 0; i < (a.length - 2); i += 3)
	if ((x = MM_findObj(a[i])) != null) {
	   	document.MM_sr[j++] = x; 
	   	if (!x.oSrc) 
	   		x.oSrc = x.src;
		x.src = a[i+2];
	}
}
/*
<!-- Random header Image Script - Transport Homepage-->

var banner= new Array()
banner[0]="/transport/assets/images/banner/1.jpg"
banner[1]="/transport/assets/images/banner/2.jpg"
banner[2]="/transport/assets/images/banner/3.jpg"
banner[3]="/transport/assets/images/banner/4.jpg"

var random=Math.floor(3*Math.random()); <!-- Number before *Math is the total number of images -->

document.write("<style>");
document.write("#main-image {");
document.write(' background:url("' + banner[random] + '") no-repeat center top;');
document.write(" }");
document.write("</style>");
*/

<!-- Random header Image Script - East Arm Project -->

var banner2= new Array()
banner2[0]="/transport/ntroads/projects/eastarm/images/banner/1.jpg"
banner2[1]="/transport/ntroads/projects/eastarm/images/banner/2.jpg"
banner2[2]="/transport/ntroads/projects/eastarm/images/banner/3.jpg"
banner2[3]="/transport/ntroads/projects/eastarm/images/banner/4.jpg"
banner2[4]="/transport/ntroads/projects/eastarm/images/banner/5.jpg"
banner2[5]="/transport/ntroads/projects/eastarm/images/banner/6.jpg"

var random=Math.floor(6*Math.random()); <!-- Number before *Math is the total number of images -->

document.write("<style>");
document.write("#main-image-berrimah {");
document.write(' background:url("' + banner2[random] + '") no-repeat center top;');
document.write(" }");
document.write("</style>");

<!-- Random header Image Script - Public Transport -->

var banner3= new Array()
banner3[0]="/transport/assets/images/public_banner/1.jpg"
banner3[1]="/transport/assets/images/public_banner/2.jpg"
banner3[2]="/transport/assets/images/public_banner/3.jpg"
banner3[3]="/transport/assets/images/public_banner/4.jpg"
banner3[4]="/transport/assets/images/public_banner/5.jpg"
banner3[5]="/transport/assets/images/public_banner/6.jpg"
banner3[6]="/transport/assets/images/public_banner/7.jpg"
banner3[7]="/transport/assets/images/public_banner/8.jpg"
banner3[8]="/transport/assets/images/public_banner/9.jpg"
banner3[9]="/transport/assets/images/public_banner/10.jpg"


var random=Math.floor(10*Math.random());

document.write("<style>");
document.write("#main-image-pubtransport {");
document.write(' background:url("' + banner3[random] + '") no-repeat center top;');
document.write(" }");
document.write("</style>");