function visibilite(thingId)
	{
		var targetElement;
		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 switchTabs2(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 = '';
			}
		}
	}
}

var footerVisible = false;

function initFooter() {
	//apply scroll effect for 'back to page top' link
	var scrollToTop = new Fx.Scroll(window, {duration:800});
	if($('page-top')){
		$('page-top').addEvent('click', function() {
			scrollToTop.toElement(document.body);
		});
	};
	//apply slide effect to footer links and hide it
	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;
		}
	});
}

function initPowerCentre() {
	$$('#pc-links li.item').each(function(li){
		var deck = li.getElement('li.deck');
		var toggleImg = li.getElement('img');
		var fx = new Fx.Slide(deck, {duration:200}).hide();
		toggleImg.addEvent('click', function(){
			fx.toggle();
			if (toggleImg.getProperty('alt') == 'Expand') {
				toggleImg.setProperties({src:'/i/ads/powercentre-collapse.gif', alt:'Collapse'});
			} else {
				toggleImg.setProperties({src:'/i/ads/powercentre-expand.gif', alt:'Expand'});
			}
		});
	});
}

//to replicate :hover effect for IE
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'), ''); }
	}
}

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(thingId) {
	var targetElement = document.getElementById(thingId);
	if (targetElement.style.display == "none") {
		targetElement.style.display = "block";
		document.getElementById('expand-link').innerHTML = "[-] Hide bio";
	} else {
		targetElement.style.display = "none";
		document.getElementById('expand-link').innerHTML = "[+] Read bio";
	}
}

/*
Window.onDomReady(function(){
	init();
});
*/

function init(){
	initPowerCentre();
	initFooter();
	if (document.getElementById('story-tools')) {
		suckerfish(sfHover, 'LI', 'story-tools');
	}
}