function init()
{
	setFooter();
}


function getWindowHeight() {
	var windowHeight = 0;
	if (typeof(window.innerHeight) == 'number') 
	{
		windowHeight = window.innerHeight;
	}
	else 
	{
		if (document.documentElement && document.documentElement.clientHeight) 
		{
			windowHeight = document.documentElement.clientHeight;
		}
		else 
		{
			if (document.body && document.body.clientHeight) 
			{
				windowHeight = document.body.clientHeight;
			}
		}
	}
	return windowHeight;
}
		
function setFooter() 
{
	if (document.getElementById) 
	{
		var windowHeight = getWindowHeight();
		if (windowHeight > 0) 
		{
			var contentHeight = document.getElementById('container').offsetHeight + 150; //+150px omwille van de header & spacing
			var footerElement = document.getElementById('footer');
			var footerHeight  = footerElement.offsetHeight;
			
			var totalHeight = contentHeight + footerHeight;
			
			//meer content dan browser window
			if (totalHeight >= windowHeight)
			{	
				footerElement.style.top = contentHeight + 'px';
			}
			
			else
			{
				footerElement.style.top = (windowHeight - footerHeight ) + 'px';
			}
		}
	}
}

window.onresize = function() 
{
	setFooter();
}