window.onload = initAll;

var currImg = 0;
var captionText = new Array(
	"Fall Cleanup 2008: Group Photo",
	"Fall Cleanup 2008: Scott Feuer",
	"Fall Cleanup 2008: Kevin Murphy",
	"Fall Cleanup 2008: Michael Seiden",
	"Fall Cleanup 2008: Lynne Feuer &amp; Carol Lavoritano",
	"Merion Tribute House",
	"Merion Tribute House covered entry",
	"Merion Boy Scout House",
	"Barnes Foundation",
	"Merion Shopping District Sign",
	"Merion Station Post Office",
	"Merion Station Post Office Sign",
	"Merion School",
	"Merion Park: Sign",
	"Merion Park: Bridge",
	"Merion Park: Path",
	"Merion Post Office: Flower boxes",
	"Spring Cleanup 2009: Michael Seiden",
	"Spring Cleanup 2009: Lauren Wylonis &amp; Karla Moras",
	"Spring Cleanup 2009: Kids",
	"Flag Day Concert: Frances Quinn, Tim Mullen",
	"Flag Day Concert: band",
	"Flag Day Concert: audience"	
)
var slideName = new Array(
	"images/Group.jpg",
	"images/Scott Feuer.jpg",
	"images/Kevin Murphy.jpg",
	"images/Michael Seiden.jpg",
	"images/Feuer Lavoritano.jpg",
	"images/Merion Tribute House.jpg",
	"images/Merion Tribute House covered entry.jpg",
	"images/Merion Boy Scout House.jpg",
	"images/Barnes Foundation.jpg",
	"images/Sign.jpg",
	"images/Merion Station Post Office.jpg",
	"images/Merion Station PO Sign.jpg",
	"images/School.jpg",
	"images/MerionPark_Sign.jpg",
	"images/MerionPark_Bridge.jpg",
	"images/MerionPark_Path.jpg",
	"images/MerionPostOffice_Flowers.jpg",
	"images/Spr2009Clean_MSeiden.jpg",
	"images/Spr2009Clean_lauren_karla.jpg",
	"images/Spr2009Clean_Kids.jpg",
	"images/FlagDay2009_intro.jpg",
	"images/FlagDay2009_band.jpg",
	"images/FlagDay2009_audience.jpg"
)

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("slideshow").src = slideName[currImg];
	document.getElementById("imgText").innerHTML = captionText[currImg];
}

						
