/*
Code for swapping tabs and changing the link styles
*/

var currentTab = 0;

function selectInitialTab()
{
	if (document.getElementById('tab' + currentTab))
	{ 
	turnOnTab(currentTab); }
}


function changeTab(newTab)
{
	// hide current tab
	turnOffTab(currentTab);
	
	// change current tab
	currentTab = newTab;
	
	// show new current tab
	turnOnTab(currentTab);
}

function turnOffTab(tabNum)
{
	document.getElementById('tab' + tabNum).style.display = 'none';
	//document.getElementById('tablink' + tabNum).className = '';
}

function turnOnTab(tabNum)
{
	document.getElementById('tab' + tabNum).style.display = 'block';
	//document.getElementById('tablink' + tabNum).className = 'on';
}