var imgNum = 0;  
var pwaHeader = false;
var albumDisplay = true; 
var pwaLogo = false; 
var pwaSlideShow = true; 
var pwaSlideSpeed = 7000; 
var pwaImageSize = 160; 
var pwaImageFeed = 20; 
var pwaBorder = true; 
var pwaBorderSize = 1; 
var pwaBorderColor = '#CCCCCC'; 

function pwShow(root) { 
	var feed = root.feed; 
	var entries = feed.entry || []; 
	var pwTitle = feed.title.$t; 
	var album = feed.link[1].href; 

	//alert(entries);

	pwf= document.getElementById('pwFeed'); 
	if(pwaHeader){ 
		h2 = document.createElement('h2'); 
		h2a = document.createElement('a'); 
		h2a.href = album; 
		h2t = document.createTextNode(pwTitle); 
		h2a.appendChild(h2t); 
		h2.appendChild(h2a); 
		pwf.appendChild(h2);} 
		ul = document.createElement('ul'); 
		ul.id = 'pwaUL'; 
		ul.style.listStyleType = 'none'; 

		if(feed.entry.length > pwaImageFeed){ 
			pwaFetch = pwaImageFeed;
		} 
		else {
			pwaFetch = feed.entry.length;
		} 

		for (var i = 0; i < pwaFetch ; ++i) { 
			var entry = feed.entry[i]; 
			var title = entry.title.$t;
			//alert(root); 
			var jsonImage = entry.media$group.media$content[0].url; 
			if(albumDisplay){
				var link = entry.link[1].href;
			}else {
				var link = entry.link[1].href;
			} 

			li = document.createElement('li'); 
			li.style.backgroundImage = 'none'; 
			li.style.border = '0px'; 

			if(pwaSlideShow){
				li.style.display = 'none';  
				li.id = 'pwa' + imgNum;
			} 

			a = document.createElement('a');
			a.href = link; a.title = title;
			img = document.createElement('img');
			img.src = jsonImage + '?imgmax=' + pwaImageSize + '&crop=1'; 

			if(pwaBorder){
				img.style.padding = '2px';
				img.style.border = pwaBorderSize + 'px ' + pwaBorderColor + ' solid';
			} 

			img.style.width = 120 + 'px'; 
			img.style.height = 120 + 'px';

			a.appendChild(img);
			li.appendChild(a);
			ul.appendChild(li);
			imgNum++;
		} 

		if(pwaLogo){ 
			logoli = document.createElement('li');
			logoli.style.paddingTop = '3px';
			logo = document.createElement('img');
			logo.src = 'http://photos1.blogger.com/x/blogger2/4751/2497/320/550435/picasaweblogo-en_US.gif';
			logoli.appendChild(logo); 
			ul.appendChild(logoli);
		} 

		pwf.appendChild(ul);

		if(pwaSlideShow){ 
			pwaPlay();
		}
	} 

	var pwaCurrent = 0; 

	function pwaPlay(){
		if(pwaCurrent >0){ 
			pwPrev = pwaCurrent - 1; 
			document.getElementById('pwa'+pwPrev).style.display = 'none';
		}
		 else {
			pwPrev = imgNum -1;
			document.getElementById('pwa'+pwPrev).style.display = 'none';
		} 

		document.getElementById('pwa'+pwaCurrent).style.display = 'block'; 
		pwaCurrent++; 
		if (pwaCurrent == imgNum){ 
			pwaCurrent = 0;
		}

		setTimeout('pwaPlay()', pwaSlideSpeed);
	}