function initTabs()
{
	var sets = document.getElementsByTagName("ul");
	for (var i = 0; i < sets.length; i++)
	{
		if (sets[i].className.indexOf("tabset") != -1)
		{
			var tabs = [];
			var links = sets[i].getElementsByTagName("a");
			for (var j = 0; j < links.length; j++)
			{
				if (links[j].className.indexOf("tab") != -1)
				{
					tabs.push(links[j]);
					links[j].tabs = tabs;
					if (links[j].className.indexOf("active") != -1)
					{
						var c = document.getElementById(links[j].href.substr(links[j].href.indexOf("#") + 1));
						if (c)
							c.style.display = "block";
					}
					links[j].onclick = function ()
					{
						var c = document.getElementById(this.href.substr(this.href.indexOf("#") + 1));
						if (c)
						{
							//reset all tabs
							for (var i = 0; i < this.tabs.length; i++)
							{
								document.getElementById(this.tabs[i].href.substr(this.tabs[i].href.indexOf("#") + 1)).style.display = "none";
								this.tabs[i].className = this.tabs[i].className.replace("active", "");
							}
							this.className += " active";
							c.style.display = "block";
							return false;
						}
					}
				}
			}
		}
	}

	if ((navigator.appVersion.indexOf("Safari")) != -1) document.body.className += " safari";
}

function initPng()
{
	if (navigator.appVersion.indexOf("MSIE 6") != -1){
		var images = document.getElementsByTagName("img");
		if (images){
			for (var i = 0; i < images.length; i++){
				if (((images[i].src.indexOf(".png")) != -1) && (images[i].parentNode.tagName == "SPAN")){
					var srcname = images[i].src.replace(new RegExp('(.*)\/(.*)?\.png'),"$2");
					images[i].parentNode.style.display = "inline-block"
					images[i].style.visibility = "hidden";
					images[i].style.marginTop = "0";
					images[i].parentNode.style.filter = "progid:dximagetransform.microsoft.alphaimageloader(src='images/"+ srcname +".png',sizingmethod='crop');"
				}
			}
		}
	}
}

if (window.addEventListener){
	window.addEventListener("load", initTabs, false);
	}
if (window.attachEvent && !window.opera){
	window.attachEvent("onload",initPng);
	window.attachEvent("onload", initTabs);
	}

var bp_charts_slideshow_imgs = [];
var bp_charts_slideshow_cur  = 0;
var bp_charts_slideshow_root = null;
var bp_charts_slideshow_viewer = null;
function bp_charts_slideshow(img_root,chart_id) {
	try { if(bp_new) return; } catch(ex) {}
	
	var objScreenshot = document.getElementById('_slideshow');
	objScreenshot.style.position = "relative";
	
	//	<div id="bp_slidebtns">
	//		<a id="bp_slide_prev">Previous</a>
	//		<a id="bp_slide_next">Next</a>
	//	</div>
	var objSlideBtns = document.createElement("div");
	    objSlideBtns.setAttribute("id","bp_slidebtns");
		objSlideBtns.style.display = 'none';
		objSlideBtns.style.position = 'absolute';
		objSlideBtns.style.bottom = '5px';
		objSlideBtns.style.right = '5px';
		objSlideBtns.style.zIndex = '100';
		
	var objSlidePrev = document.createElement("a");
		objSlidePrev.setAttribute("href","javascript:;");
		objSlidePrev.setAttribute("id","bp_slide_prev");
		objSlidePrev.onclick = bp_charts_slideshow_prev;
		objSlidePrev.innerHTML = 'Previous';
		
		objSlideBtns.appendChild(objSlidePrev);
		
	var objSlideNext = document.createElement("a");
		objSlideNext.setAttribute("href","javascript:;");
		objSlideNext.setAttribute("id","bp_slide_next");
		objSlideNext.onclick = bp_charts_slideshow_next;
		objSlideNext.innerHTML = 'Next';
		
		objSlideBtns.appendChild(objSlideNext);
		
	objScreenshot.insertBefore(objSlideBtns, objScreenshot.firstChild);
	
	bp_charts_slideshow_load(chart_id);
	bp_charts_slideshow_root = img_root;
}
function bp_charts_slideshow_show() {
	new Effect.Appear('bp_slidebtns');
}
function bp_charts_slideshow_load(chart_id) {
	new Ajax.Request('/tools/guides-core/interact.php?guide=charts&action=slideshow&id='+chart_id, {
		method: 'get',
		onSuccess: function(transport) {
			// load images
			var imgs = transport.responseText.split('|');
			bp_charts_slideshow_imgs = imgs;
			// slideshow viewer
			try {
				bp_charts_slideshow_viewer = new PhotoViewer();
				bp_charts_slideshow_viewer.disableEmailLink();
				bp_charts_slideshow_viewer.disablePhotoLink();
				bp_charts_slideshow_viewer.setBorderWidth(3);
				bp_charts_slideshow_viewer.setFontSize(12);
				for(var i = 0; i < imgs.length; i++) {
					bp_charts_slideshow_viewer.add( bp_charts_slideshow_root + "/" + imgs[i].split('~')[0], imgs[i].split('~')[1] );
				}
				$('screenshot_href').href = "javascript:void(bp_charts_slideshow_viewer.show(0));";
			} catch(ex) {}
			// show slideshow
			if(imgs.length > 1)
				bp_charts_slideshow_show();
//			console.log(bp_charts_slideshow_imgs);
			// validate
			bp_charts_slideshow_validate();
		}
	});
}
function bp_charts_slideshow_next() {
	var max_imgs = bp_charts_slideshow_imgs.length;
	if(bp_charts_slideshow_cur < (max_imgs - 1)) {
		bp_charts_slideshow_cur++;
		$('screenshot').src = bp_charts_slideshow_root + "/" + bp_charts_slideshow_imgs[ bp_charts_slideshow_cur ].split('~')[0];
		bp_charts_slideshow_validate();
	}
}
function bp_charts_slideshow_prev() {
	var max_imgs = bp_charts_slideshow_imgs.length;
	if(bp_charts_slideshow_cur > 0) {
		bp_charts_slideshow_cur--;
		$('screenshot').src = bp_charts_slideshow_root + "/" + bp_charts_slideshow_imgs[ bp_charts_slideshow_cur ].split('~')[0];
		bp_charts_slideshow_validate();
	}
}
function bp_charts_slideshow_validate() {
//	console.log('current img: '+bp_charts_slideshow_cur);
	var max_imgs = bp_charts_slideshow_imgs.length;
	if(bp_charts_slideshow_cur > 0) {
		new Effect.Opacity('bp_slide_prev', {to:1.0,duration:0.33});
	} else {
		new Effect.Opacity('bp_slide_prev', {to:0.3,duration:0.33});
	}
	if(bp_charts_slideshow_cur >= (max_imgs - 1)) {
		new Effect.Opacity('bp_slide_next', {to:0.3,duration:0.33});
	} else {
		new Effect.Opacity('bp_slide_next', {to:1.0,duration:0.33});
	}
}