function $(i){return (document.getElementById)?document.getElementById(i):null}
var subId = '';
function setUp() {
	$(pageId).className+=" navLinkSel"
	if ($(subId)) {
		$(subId).className="subNavSel"	
	}
	if (pageId == "home") {
		rotate()	
	}
}
var slideShw = new Array ('images/homeslide_1.jpg','images/homeslide_2.jpg','images/homeslide_3.jpg','images/homeslide_4.jpg','images/homeslide_5.jpg','images/homeslide_6.jpg','images/homeslide_7.jpg','images/homeslide_8.jpg','images/homeslide_9.jpg','images/homeslide_10.jpg','images/homeslide_11.jpg','images/homeslide_12.jpg','images/homeslide_13.jpg','images/homeslide_14.jpg')
var slideTxt = new Array ('','','','','','')
var thisImg = -1
var imgCt = slideShw.length
function rotate() {
if (document.images) {
	thisImg++
	if (thisImg == imgCt) {
		thisImg = 0
	}
	document.getElementById('slideImg').src = slideShw[thisImg]
	//document.getElementById('slideTxt').innerHTML = slideTxt[thisImg]
	//alert("this image:" + slideShw[thisImg])
	setTimeout('rotate()',3 * 1000)
}
}
var interval = 1500;
var random_display = 0;
var imageDir = "index_files/";
var imageNum = 0;
var timerID = '';
var imageArray = new Array()

imageNum = 0;
imageArray['temp'] = new Object()
imageArray['temp'].images = new Array();
imageArray['temp'].images[imageNum++] = new imageItem(imageDir + "temp_1.jpg");
imageArray['temp'].images[imageNum++] = new imageItem(imageDir + "temp_2.jpg");
imageArray['temp'].images[imageNum++] = new imageItem(imageDir + "temp_3.jpg");
imageArray['temp'].totalImages = imageArray['temp'].images.length;
imageArray['temp'].imageNum = 0;


function imageItem(image_location) {
	this.image_item = new Image();
	this.image_item.src = image_location;
}
function get_ImageItemLocation(imageObj) {
	return(imageObj.image_item.src)
}
function getNextImage(place) {
	imageArray[place].imageNum = (imageArray[place].imageNum+1) % imageArray[place].totalImages;
	var new_image = get_ImageItemLocation(imageArray[place].images[imageArray[place].imageNum]);
	return(new_image);
}
function getPrevImage(place) {
	imageArray[place].imageNum = (imageArray[place].imageNum-1) % imageArray[place].totalImages;
	if (imageArray[place].imageNum<0) imageArray[place].imageNum=imageArray[place].totalImages-1;
	var new_image = get_ImageItemLocation(imageArray[place].images[imageArray[place].imageNum]);
	return(new_image);
}
function prevImage(place) {
	var new_image = getPrevImage(place);
	document[place].src = new_image;
	var placenum = place + 'Num';
	$(placenum).innerHTML = (imageArray[place].imageNum+1) + '/' + imageArray[place].totalImages;
}
function switchImage(place) {
	var new_image = getNextImage(place);
	document[place].src = new_image;
	var placenum = place + 'Num';
	$(placenum).innerHTML = (imageArray[place].imageNum+1) + '/' + imageArray[place].totalImages;
}