PghTech.questionsDevice = function(){
	var tabView = new YAHOO.widget.TabView('questions-device');
	
	var nextAction = function(e){
		var tabs = tabView.get('tabs');
		var activeTabIndex = tabView.get('activeIndex');
		var newTabIndex
		if(activeTabIndex + 1 == tabs.length){
			tabView.set('activeIndex', 0)
			newTabIndex = 0
		}else{
			tabView.set('activeIndex', activeTabIndex+1)
			newTabIndex = activeTabIndex+1
		}	
		tabView.fireEvent('activeTabChange',{typ:'activeTabChange',
						newValue:tabView.get('tabs')[newTabIndex],
						prevValue:tabView.get('activeTab')})
		YAHOO.util.Event.preventDefault(e);
	}
	var prevAction = function(e){
		
		var tabs = tabView.get('tabs');
		var activeTabIndex = tabView.get('activeIndex');
		var newTabIndex
		if(activeTabIndex - 1 < 0){
			tabView.set('activeIndex', tabs.length-1)
			newTabIndex = tabs.length-1
		}else{
			tabView.set('activeIndex', activeTabIndex-1)
			newTabIndex = activeTabIndex-1
		}	
		tabView.fireEvent('activeTabChange',{typ:'activeTabChange',
						newValue:tabView.get('tabs')[newTabIndex],
						prevValue:tabView.get('activeTab'),buttonDirection:false})
		YAHOO.util.Event.preventDefault(e);
	}
	
	
	var nextbutton = document.getElementById("questions-next")
	YAHOO.util.Event.addListener(nextbutton, "click", nextAction);
	var prevbutton = document.getElementById("questions-prev")
	YAHOO.util.Event.addListener(prevbutton, "click", prevAction);
	tabView.set('activeIndex', 0); // make first tab active
}
YAHOO.util.Event.onContentReady('questions-device',function(e){
	PghTech.questionsDevice();
});