// JavaScript Document
var currentPanel;
function showPanel(panelNum){
	//hide visible panel, show selected panel, set tab
              if (currentPanel != null) {
		hidePanel();
	}
	document.getElementById('panel'+panelNum).style.visibility = 'visible';
	currentPanel = panelNum;
	setState(panelNum);
}
function hidePanel(){
	//hide visible panel, unhilite tab
	document.getElementById('panel'+currentPanel).style.visibility = 'hidden';
	document.getElementById('tab'+currentPanel).style.backgroundColor = '#e3e5c4';
	document.getElementById('tab'+currentPanel).style.color = '#3a9de4';
	document.getElementById('tab'+currentPanel).style.textDecoration = 'none';
}
function setState(tabNum){
	if(tabNum==currentPanel){
		document.getElementById('tab'+tabNum).style.backgroundColor = '#e3e5c4';
		document.getElementById('tab'+tabNum).style.color = 'orange';
		document.getElementById('tab'+tabNum).style.textDecoration = 'underline';
	}else{
		document.getElementById('tab'+tabNum).style.backgroundColor = '#e3e5c4';
		document.getElementById('tab'+tabNum).style.color = '#3a9de4';
		document.getElementById('tab'+tabNum).style.textDecoration = 'none';
	}
}
function hover(tab){
	tab.style.backgroundColor = '#ac9f93';
}
function subhover(tab){
	tab.style.backgroundColor = '#797066';
}
function reset(tab){
	tab.style.backgroundColor = '#797066';
}
function ul(tab){
	tab.style.textDecoration = 'underline';
}