function showLB(href)
{
	// prep objects
	var objOverlay = document.getElementById('overlay');
	var objLightbox = document.getElementById('lightbox');
	var objFrame = document.getElementById('lbframe');
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();

	// set height of Overlay to take up whole page and show
	objOverlay.style.height = (arrayPageSize[1] + 'px');
	objOverlay.style.display = 'block';



	var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 700) / 2);
	var lightboxLeft = ((arrayPageSize[0] - 600) / 2);
	
	objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
	objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";

	objLightbox.style.display = 'block';

	
	// Check for 'x' keypress
	listenKey();
	objFrame.src = href;
}

function hideLB()
{	refresh_cart();
	// get objects
	var objOverlay = document.getElementById('overlay');
	var objLightbox = document.getElementById('lightbox');
	var objFrame = document.getElementById('lbframe');
	
	// hide lightbox and overlay
	objFrame.src = "/themes/maps/lb/blank.htm";
	objOverlay.style.display = 'none';
	objLightbox.style.display = 'none';

	// disable keypress listener
	document.onkeypress = '';
}

function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}

function getKey(e){
	if (e == null) { // ie
		keycode = event.keyCode;
	} else { // mozilla
		keycode = e.which;
	}
	key = String.fromCharCode(keycode).toLowerCase();
	
	if(key == 'x'){ hideLB(); }
}


//
// listenKey()
//
function listenKey () {	document.onkeypress = getKey; }

function prodover(id){
	over= document.getElementById('fishtitle');
	if (id=='none'){
		over.innerHTML='';
		//over.style.visibility='hidden';
	}else{
		over.innerHTML=areas[id];
		//over.style.visibility='visible';
	}
}


var isWorking;
var http;
var result;
var notify;
var notify_text;
var success_text;
var form_reset;




function XMLHttp() {
        var xmlhttp;
        try {
                xmlhttp = new XMLHttpRequest();
        }
        catch(error) {
                try {
                   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                }
                catch (error) {
                   return false;
                }
        }
        return xmlhttp;
}

function stateChange() {
        if (notify) {
           notification = document.getElementById(notify);
        }
        if (http.readyState == 4) {
                if (http.status == 200) {
                   stuff = http.responseText;

                   if (notification) {
				   notification.innerHTML = stuff;
                   }
				   http = false;
                   isWorking = false;
                }
        } else {
                notification.innerHTML = notify_text;
        }
}


function refresh_cart() {
        if (!http) http = XMLHttp();
        if (http) {
           url = "/cartstat";
           if (!isWorking && http) {
                notify="cartstat";
				notify_text = "Refreshing cart.";
                success_text = "Comments refreshed";
                http.onreadystatechange = stateChange;
                http.open("GET",url, true);
                isWorking = true;
                http.send(null);
           }
        } else {
                alert("no ajax support!");
        }
        return false;
}