/*------------------------------------------------------------
*  Function:  correctPNG
*  
*  Description: Correctly handle PNG transparency in Win IE 5.5
*  or higher http://homepage.ntlworld.com/bobosola. 
*  Updated 02-March-2004
*  
*  Parameters: none
*  
*  Return: none
*------------------------------------------------------------*/

function correctPNG() {
	if (document.all && navigator.platform.indexOf('Mac')<0) {
		for(var i=0; i<document.images.length; i++) {
			var img = document.images[i];
			var imgName = img.src.toUpperCase();
			if (imgName.substring(imgName.length-3, imgName.length) == "PNG") {
				var imgID = (img.id) ? "id='" + img.id + "' " : "";
				var imgClass = (img.className) ? "class='" + img.className + "' " : ""
				var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
				var imgStyle = "display:block;" + img.style.cssText;
				if (img.align == "left") imgStyle = "float:left;" + imgStyle;
				if (img.align == "right") imgStyle = "float:right;" + imgStyle;
				if (img.parentElement.href) imgStyle = "cursor:pointer;" + imgStyle;
				var strNewHTML = "<span " + imgID + imgClass + imgTitle
				+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle
				+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
				+ "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
				img.outerHTML = strNewHTML;
				i = i-1;
			}
		}
	}
}

if (window.innerWidth && window.innerHeight) {
	wdiff = window.outerWidth - window.innerWidth;
	hdiff = window.outerHeight - window.innerHeight;
	
	w = 800;
	h = 550;
	doit = false;
	if (window.innerWidth < w) {
		w = w + wdiff;
		doit = true;
	} else {
		w = window.outerWidth;
	}
	if (window.innerHeight < h) {
		h = h + hdiff;
		doit = true;
	} else {
		h = window.outerHeight;
	}
	if (doit) self.resizeTo(w,h);
}

var i=0;

// preload array
pimgs = new Array();
pimgs[i++] = newImage('images/Display_001.jpg');
pimgs[i++] = newImage('images/Display_002.jpg');
pimgs[i++] = newImage('images/Display_003.jpg');
pimgs[i++] = newImage('images/Display_011.jpg');
pimgs[i++] = newImage('images/Display_004.jpg');
pimgs[i++] = newImage('images/Display_006.jpg');
pimgs[i++] = newImage('images/Display_009.jpg');
pimgs[i++] = newImage('images/Display_010.jpg');
pimgs[i++] = newImage('images/Display_011.jpg');
pimgs[i++] = newImage('images/Display_012.jpg');
pimgs[i++] = newImage('images/Display_013.jpg');
pimgs[i++] = newImage('images/Display_014.jpg');
pimgs[i++] = newImage('images/Display_015.jpg');
pimgs[i++] = newImage('images/Display_016.jpg');
pimgs[i++] = newImage('images/Display_017.jpg');
pimgs[i++] = newImage('images/Display_018.jpg');
pimgs[i++] = newImage('images/Display_021.jpg');



// pick a random image and create a new array
// with that image as the first item in the array
j = Math.floor(Math.random() * (pimgs.length));
imgs = new Array();
for (k=0; k<pimgs.length; k++) {
	if (j >= pimgs.length) j = 0;
	imgs[j] = pimgs[k];
	j++;
}

i=0;

function newImage(path) {
	img = new Image();
	img.src = path;
	return img;
}


function showSlide(direction) {
	hide('shader');
	hide('map');
	hideSection(currentLink);

	if (direction == null) direction = 1;
	i += direction;
	if (i >= imgs.length) i = 0;
	if (i < 0) i = imgs.length - 1;
	
	document.images['slide'].src = imgs[i].src;
	document.getElementById('imgnumber').innerHTML = i + 1;
}


function dw(msg) {
	document.write(msg + "<br />");
}

var currentLink;

function showSection(that) {
	if (that) {
		hide('map');
		if (typeof(that) != "object") that = document.getElementById(that)
		if (currentLink) hideSection(currentLink);
		that.className = "navlinkcurrent";
		document.getElementById(that.id+'content').style.visibility = "visible";
		show('shader');
		currentLink = that;
	}
}

function hideSection(that) {
	if (that) {
		hide('shader');
		if (typeof(that) != "object") that = document.getElementById(that)
		that.className = "navlink";
		document.getElementById(that.id+'content').style.visibility = "hidden";
		if (that == currentLink) currentLink = null;
	}
}

function toggle(which) {
	(document.getElementById(which).style.visibility == "visible")?hide(which):show(which);
}

function show(which) {
	document.getElementById(which).style.visibility = "visible";
}

function hide(which) {
	document.getElementById(which).style.visibility = "hidden";
}

function startup() {
	correctPNG();
	showSlide(0);
	document.getElementById('imgtotal').innerHTML = imgs.length;
	document.getElementById('imgcounter').style.visibility = "visible";
	document.getElementById('arrows').style.visibility = "visible";
	//showSection('hours')
	//show('map');
}