function showDiv(div)
{
	document.getElementById(div).style.display = 'inline';
}

function hideDiv(div)
{
	document.getElementById(div).style.display = 'none';
}

var lastDiv = '';
var lastBlogDiv = '';
var lastBlogImg = ''
var currentImg = '';
var lastPost = '';

function showNav(div)
{
	if(div)
		document.getElementById(div).style.display = 'inline';

	if((div != lastDiv) && (lastDiv != ''))
		hideNav(lastDiv);

	if(div)
		lastDiv = div;
}

function showBlogNav(div,div2)
{
	if(div)
		document.getElementById(div).style.display = 'inline';

	if((div != lastBlogDiv) && (lastBlogDiv != ''))
		hideNav(lastBlogDiv);

	if(div)
		lastBlogDiv = div;
	
	//
	// SET BUTTON
	//
	currentImg = div2;

	swapImage(div2,'images/button_sidebar_down.png');
	
	if(lastBlogImg)
		swapImage(lastBlogImg,'images/button_sidebar_up.png');

	lastBlogImg = div2;
}

function hideNav(div)
{
	document.getElementById(div).style.display = 'none';
}

function hideAllNav()
{
	if(lastDiv)
		document.getElementById(lastDiv).style.display = 'none';
}

function showHideNav(div)
{
	if(document.getElementById(div).style.display == 'inline')
		document.getElementById(div).style.display = 'none';
	else
		document.getElementById(div).style.display = 'inline';
}

function showPost(div)
{
	if(div)
		document.getElementById(div).style.display = 'inline';

	if((div != lastPost) && (lastPost != ''))
		hideNav(lastPost);

	if(div)
		lastPost = div;
}

var currentProg;
function swapProgram(elem,image)
{
	if(currentProg != elem)
	{
		document.getElementById(elem).src = 'images/button_sidebar_up.png';
	}		
	document.getElementById(elem).src = image;
	currentProg = elem;
}

function swapImage(elem,image)
{
	if(currentImg != elem)
		document.getElementById(elem).src = image;
}

function swapImage2(elem,image)
{
	if(currentImg != elem)
	{
		document.getElementById(elem).src = 'images/button_sidebar_up.png';
	}
	document.getElementById(elem).src = image;
	currentImg = elem;
}

function swapClass(div,className)
{
	document.getElementById(div).className = className;
}

function swapBackground(div,imageName)
{
	document.getElementById(div).style.backgroundImage = 'url('+imageName+')';
}