document.write('<style type="text/css">#pc-links li.deck{display:none}</style>');

var initSite = {
	
	start: function() {
		if ($('promo-power-centre')) { initSite.powerCentre(); }
		initSite.siteFooter();
	},

	powerCentre: function() {
		pcSliders = $$('#pc-links li.deck');
		pcTogglers = $$('#pc-links img.toggle');
		sliders = [];
		pcTogglers.each(function(toggler, x) {
			pcSliders[x].setStyle('display','inline');
			sliders[x] = new Fx.Slide(pcSliders[x], {duration:200}).hide();
			$(pcTogglers[x]).addEvent('click', function() {
				sliders[x].toggle();
				if (pcTogglers[x].getProperty('alt') == 'Expand') {
					pcTogglers[x].setProperties({src:'powercentre-collapse.gif', alt:'Collapse'});
				} else {
					pcTogglers[x].setProperties({src:'powercentre-expand.gif', alt:'Expand'});
				}
			});
		});
	},

	siteFooter: function() {
		if($('page-top')){
			var scrollToTop = new Fx.Scroll(window, {duration:800});
			$('page-top').addEvent('click', function() {
				scrollToTop.toElement(document.body);
			});
		};
		footerVisible = false;
		var mySlider = new Fx.Slide('external-links',{duration:1000}).hide();
		$('toggle-footer').addEvent('click', function() {
			if (footerVisible == false) {
				$('toggle-footer').setHTML('Hide links');
				var footerHeight = $('external-links').getStyle('height').toInt() + 40;
				document.getElementById('footer').style.height = footerHeight+'px';
				var scrollToBottom = new Fx.Scroll(window, {duration:600});
				scrollToBottom.toElement('footer-bottom');
				(function(){mySlider.toggle()}).delay(600);
				footerVisible = true; 
			} else {
				$('toggle-footer').setHTML('Around ZDNet Australia');
				document.getElementById('footer').style.height = 'auto';
				mySlider.toggle();
				footerVisible = false;
			}
		});
	}

};

//window.addEvent('domready', initSite.start);

/*-------------------------------------------------------------------
Replicate :hover pseudo class on any element for IE
------------------------------------------------------------------- */
function initStoryTools(){
	if ($('story-tools')) {
		suckerfish(sfHover, 'LI', 'story-tools');
	}
}

function suckerfish(type, tag, parentId) {
	if (window.attachEvent) {
		window.attachEvent('onload', function() {
			var sfEls = (parentId==null)?document.getElementsByTagName(tag):document.getElementById(parentId).getElementsByTagName(tag);
			type(sfEls);
		});
	}
}

var sfHover = function(sfEls) {
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() { this.className+=' sfhover'; }
		sfEls[i].onmouseout=function() { this.className=this.className.replace(new RegExp(' sfhover\\b'), ''); }
	}
}

/*-------------------------------------------------------------------
Miscellaneous site functions
------------------------------------------------------------------- */
function visibilite(thingId) {
	var targetElement = document.getElementById(thingId) ;
	if (targetElement.style.display == "none") {
		targetElement.style.display = "" ;
	} else {
		targetElement.style.display = "none" ;
	}
}

function switchTabs(tabNum, parentId) {
	var tabs = document.getElementById(parentId.id).getElementsByTagName('li');
	var boxId = parentId.parentNode.id;
	for (var i = 0; i < tabs.length; i++) {
		var thisTab = tabs[i];
		if ((thisTab.id != '')) {
			document.getElementById(boxId+'-content'+i).style.display = 'none';
			if (i == tabNum) {
				if (i == 0) {
					thisTab.className = 'active first';
				} else {
					thisTab.className = 'active';
				}
				document.getElementById(boxId+'-content'+i).style.display = 'block';
			} else {
				thisTab.className = '';
			}
		}
	}
}

function snapshot(theObject){
	var snapshot_tab1 = document.getElementById('snapshot_tab1');
	var snapshot_1 = document.getElementById('snapshot_1');
	var snapshot_tab2 = document.getElementById('snapshot_tab2');
	var snapshot_2 = document.getElementById('snapshot_2');
	var snapshot_tab3 = document.getElementById('snapshot_tab3');
	var snapshot_3 = document.getElementById('snapshot_3');
	var snapshot_tab4 = document.getElementById('snapshot_tab4');
	var snapshot_4 = document.getElementById('snapshot_4');
	switch(theObject.id){
		case 'snapshot_tab1':
			snapshot_tab2.className = '';
			snapshot_tab3.className = '';
			snapshot_tab4.className = '';
			snapshot_1.style.display = 'block';
			snapshot_2.style.display = 'none';
			snapshot_3.style.display = 'none';
			snapshot_4.style.display = 'none';
			break;
		case 'snapshot_tab2':
			snapshot_tab1.className = '';
			snapshot_tab3.className = '';
			snapshot_tab4.className = '';
			snapshot_1.style.display = 'none';
			snapshot_2.style.display = 'block';
			snapshot_3.style.display = 'none';
			snapshot_4.style.display = 'none';
			break;
		case 'snapshot_tab3':
			snapshot_tab1.className = '';
			snapshot_tab2.className = '';
			snapshot_tab4.className = '';
			snapshot_1.style.display = 'none';
			snapshot_2.style.display = 'none';
			snapshot_3.style.display = 'block';
			snapshot_4.style.display = 'none';
			break;
		case 'snapshot_tab4':
			snapshot_tab1.className = '';
			snapshot_tab2.className = '';
			snapshot_tab3.className = '';
			snapshot_1.style.display = 'none';
			snapshot_2.style.display = 'none';
			snapshot_3.style.display = 'none';
			snapshot_4.style.display = 'block';
			break;
	}
	theObject.className = 'snapshot_selected'
}

function showBlogBio(bioToShow) {
	var el = $(bioToShow);
	if (el.getStyle('display') == 'none') {
		el.setStyle('display','block');
		$('expand-link').setHTML('[-] Hide bio');
	} else {
		el.setStyle('display','none');
		$('expand-link').setHTML('[+] Read bio');
	}
}

function videoThumbText(msg){
	var targetElement = document.getElementById('video-thumb-display') ;
	if(msg){
		targetElement.innerHTML = '<strong>'+msg+'</strong>';
	}else{
		targetElement.innerHTML = '<a href="/videos/">Watch more videos</a> on ZDNet Australia';
	}
}