//******************************************
//***** Written by Taylor Johnson 2006 *****
//******************************************

//Global Variables
var currentPage = document.location.href;
var frozenMenu;

/********************************/
/******** Detect Browser ********/
/********************************/

var agent = navigator.userAgent.toLowerCase();
var isFF = (agent.indexOf('firefox') != -1);
var isIE = (agent.indexOf('msie') != -1);
var isSA = (agent.indexOf('safari') != -1);
var isIE6 = (navigator.appVersion.indexOf('MSIE 6.0') != -1);

/*******************************************/
/******** Load Browser-specific CSS ********/
/*******************************************/
if(isIE6){document.writeln('<link rel="stylesheet" type="text/css" media="screen" href="/assets/ie6.css" />');}
//OnLoad
function runScripts(){
	//Highlight current page in menu
	for(i=0; i<7 ; i++){
		if(document.getElementById('menu').getElementsByTagName('a')[i].href == currentPage){
			document.getElementById('menu').getElementsByTagName('td')[i].className = "menuItemOn";
		}
	}
	if(currentPage.indexOf("portfolio") > 0){
		document.getElementById("menu4").className = "menuItemOn";
		//frozenMenuItem = 0;
		//freezeIt(0);
	}
	if(currentPage == "http://www.insiteeng.net/"){
		document.getElementById("menu1").className = "menuItemOn";
	}
	rotateImages();
}
//*****************************
//******* HEADER IMAGES *******
//*****************************
var projectImages = 5;
var sceneryImages = 14;
var randomProjectImage = Math.floor(Math.random()*projectImages)+1;
var randomSceneryImage = Math.floor(Math.random()*sceneryImages)+1;
function rotateImages(){
	document.getElementById("project1").src = "/images/header/headerProject_" + randomProjectImage + ".jpg";
	document.getElementById("scenery1").src = "/images/header/headerScenery_" + randomSceneryImage + ".jpg";
	var randomProjectHolder = randomProjectImage;
	while(randomProjectImage == randomProjectHolder){
		randomProjectImage = Math.floor(Math.random()*projectImages)+1;
	}
	var randomSceneryHolder = randomSceneryImage;
	while(randomSceneryImage == randomSceneryHolder){
		randomSceneryImage = Math.floor(Math.random()*sceneryImages)+1;
	}
	document.getElementById("project2").src = "/images/header/headerProject_" + randomProjectImage + ".jpg";
	document.getElementById("scenery2").src = "/images/header/headerScenery_" + randomSceneryImage + ".jpg";
}
//*********************************
//******* MENU HIGHLIGHTING *******
//*********************************
function menuOn(menuItem){
	menuItem.className = "menuItemOn";
}
function menuOff(menuItem){
	menuItem.className = "menuItemOff";
	for(i=0; i<7 ; i++){
		if(document.getElementById('menu').getElementsByTagName('a')[i].href == currentPage){
			document.getElementById('menu').getElementsByTagName('td')[i].className = "menuItemOn";
		}
	}
	if(currentPage.indexOf("portfolio") > 0){
		document.getElementById("menu4").className = "menuItemOn";
		//frozenMenuItem = 0;
		//freezeIt(0);
	}
	if(currentPage == "http://www.insiteeng.net/"){
		document.getElementById("menu1").className = "menuItemOn";
	}
}
function menuLink(menuItemLink){
	document.location = menuItemLink.children[0].href;
}

//Style buttons
function styleButtons(){
	var formItems = document.forms[0].length;   //START STYLING BUTTONS
	for(i=0; i<formItems; i++){
		if((document.forms[0].elements[i].type=="submit")||(document.forms[0].elements[i].type=="button")){
			document.forms[0].elements[i].className = "buttons";
		}
	}
}

//Dreamweaver Functions
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_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_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];}
}