// JavaScript Document
var currImg = 0;
var captionText = new Array(
	 "BC Guide Dogs at Tsawwassen Sunfest parade",
	 "BC Guide Dogs at Tsawwassen Sunfest parade",
	 "Griffin at Stampede",
	 "Rosamund and Guide Dog Janie at Tuktoyaktuk",
	 "BC Guide Dog Services - Landra Berwick, GDMI and guide dog Juno carry the torch for the 2010 Winter Olympics.",
   	 "Alberta Guide Dog in Training, Morris enjoys the snow and mountains in Alberta.",					
	 "BC Guide Dog Services",
   	 "BC Guide Dog Services",
     "BC Guide Dog Services",
	 "BC Guide Dog Services",
     "BC Guide Dog Services",
	 "BC Guide Dog Services",
     "BC Guide Dog Services",
	 "BC Guide Dog Services",
     "BC Guide Dog Services",
	 "BC Guide Dog Services",
     "BC Guide Dog Services",
     "BC Guide Dog Services",
     "BC Guide Dog Services",
	 "BC Guide Dog Services",
     "BC Guide Dog Services",
	 "Alberta Guide Dog Services",
	 "Alberta Guide Dog Services"
)

function initAll() {
	document.getElementById("imgText").innerHTML = captionText[0];
	document.getElementById("prevLink").onclick = processPrevious;
	document.getElementById("nextLink").onclick = processNext;
}

function processPrevious() {
	newSlide(-1);
}

function processNext() {
	newSlide(1);
}

function newSlide(direction) {
	var imgCt = captionText.length;

	currImg = currImg + direction;
	if (currImg < 0) {
		currImg = imgCt-1;
	}
	if (currImg == imgCt) {
		currImg = 0;
	}
	document.getElementById("images_gallery").src = "images_gallery/slideImg" + currImg + ".jpg";
	document.getElementById("imgText").innerHTML = captionText[currImg];
}