function sw(objName,onoff) {
	var e = document.getElementById(objName);
	if (onoff == 1) {
	
		if (e.overFileName == null) {
			e.myFileName = e.src;
			var extStart = 0;
			if (e.src.indexOf(".gif") > 1) {
				extStart = e.src.indexOf(".gif");
			} else if (e.src.indexOf(".jpg") > 1) {
				extStart = e.src.indexOf(".jpg");
			} else {
				extStart = e.src.indexOf(".png");
			}
			var overFileName = e.src.substr(0,extStart) + "_over" + e.src.substr(extStart,e.src.length);
			e.overFileName = overFileName;
		}

		e.src = e.overFileName;
		
	} else {
		e.src = e.myFileName;
	}
}

$(document).ready(function() {
	
	var curIndex = 0;
	var curLeft = 0;
	var maxLeft = 0;
	var picWidth = 399;
	
	$("#arrow-left").click(function(e) {

		e.preventDefault();
		
		/* slide routine
		------------------*/
		maxLeft = -1 * ($("#gallery-image-container div").length - 3) * picWidth;
		
		if (curLeft == picWidth) {
			$("#gallery-image-container").css("left",maxLeft + "px");
			curLeft = maxLeft;
		}
		
		if (curLeft < picWidth) {
			var newLeft = curLeft + picWidth;
			$("#gallery-image-container").animate({left:newLeft + "px"},"slow");
			curLeft = newLeft;
		}
				
	});

	$("#arrow-right").click(function(e) {

		/* slide routine
		------------------*/
		maxLeft = -1 * ($("#gallery-image-container div").length - 3) * picWidth;
		
		if (curLeft == maxLeft) {
			$("#gallery-image-container").css("left",picWidth + "px");
			curLeft = picWidth;
		}
		
		if (curLeft > maxLeft) {
			var newLeft = curLeft - picWidth;
			$("#gallery-image-container").animate({left:newLeft + "px"},"slow");
			curLeft = newLeft;
		}
		
	});
	

	if (pageLabel == "home") {
		for (var i=0; i<$("#home-header div").length; i++) {
			headerText.push($($("#home-header div")[i]).html());
		}
		$($("#home-header div")[0]).css("top","14px");
			
	}
	
	// add transparency to caption black
	$('#gallery-image-container div span.caption span.bg').animate({ opacity: 0.75 },0);
	$('#gallery-image-container div span.count span.bg').animate({ opacity: 0.75 },0);
	
	
	
});

var curHeaderPos = 0;
var headerText = Array();

function changeHeader() {
	
	var nextPos = curHeaderPos + 1;
	if (nextPos == headerText.length) nextPos = 0;
	
	$($("#home-header div")[nextPos]).css("top","14px");
	$($("#home-header div")[nextPos]).css("display","none");

	$($("#home-header div")[curHeaderPos]).fadeOut("slow",function() {
		$($("#home-header div")[nextPos]).fadeIn("slow");
	});
	
	
	curHeaderPos = nextPos;
	
}