var navLoaded=0;
function load_nav_imgs() {
	bodiesOver = new Image(); bodiesOver.src='img/nav-bodies-over.gif';
	liftgatesOver = new Image(); liftgatesOver.src='img/nav-liftgates-over.gif';
	partsOver = new Image(); partsOver.src='img/nav-parts-over.gif';
	serviceOver = new Image(); serviceOver.src='img/nav-service-over.gif';
	inventoryOver = new Image(); inventoryOver.src='img/nav-inventory-over.gif';
 navLoaded=1;	
}

var rotation="";
var nextImg=1;
var bodiesLoaded=0;
function load_bodies() {
	b1 = new Image(); b1.src='img/pic-home-1.jpg';
	b2 = new Image(); b2.src='img/pic-home-2.jpg';
	b3 = new Image(); b3.src='img/pic-home-3.jpg';
	b4 = new Image(); b4.src='img/pic-home-4.jpg';
	b5 = new Image(); b5.src='img/pic-home-5.jpg';
	b6 = new Image(); b6.src='img/pic-home-6.jpg';
	b7 = new Image(); b7.src='img/pic-home-7.jpg';
	b8 = new Image(); b8.src='img/pic-home-8.jpg';
	b9 = new Image(); b9.src='img/pic-home-9.jpg';
 bodiesLoaded=1;
	rotation=setTimeout("rotateImages()",3000);
}

function bOver(num) {
	clearTimeout(rotation);
	nextImg=num;
	document.getElementById('bnav').style.backgroundPosition="0px "+(num*30-25)+"px";
	if (bodiesLoaded)	document.getElementById('home_pic').src=eval('b'+num+'.src');
}

function bOut() {
	rotation=setTimeout("rotateImages()",3000);
}

function rotateImages() {
	if (nextImg<9) nextImg++; else nextImg=1;
	bOver(nextImg);
	rotation=setTimeout("rotateImages()",3000);
}

var lastImg=new Image();
function navOver(object) {
	if (navLoaded) {
 	lastImg.src=document.getElementById(object).src;
	 document.getElementById(object).src=eval(object+"Over.src");
	}
}
function navOut(object) {
	if (navLoaded) {
 	document.getElementById(object).src=lastImg.src;
	}
}

var show = new Array();
show['about']=0;

function showMenu(object) {
	show[object]=1;
 document.getElementById("dd_"+object).style.visibility="visible";
}

function hideMenu(object) {
	if (show[object]==0) {
  document.getElementById("dd_"+object).style.visibility="hidden";
	}
}

function preHide(object) {
 show[object]=0;
 setTimeout("hideMenu('"+object+"')",1000);
}

function hideAll() {
	show['about']=0;
 hideMenu('about');
}

function checkEmail(email) {
 if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email.toLowerCase())) {
  return true;
 } else {
  return false;
 }
}