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) 
		{	
			if(parseInt($('#container').width()) > 900) // print stylesheet heeft 649 als breedte, hier de check voor de footer dus
			{
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					var contentHeight = document.getElementById('main').offsetHeight + document.getElementById('header').offsetHeight;
					var footerElement = document.getElementById('footer');
					var footerHeight  = footerElement.offsetHeight;
					if (windowHeight - (contentHeight + footerHeight) >= 0) {
						footerElement.style.position = 'relative';
						footerElement.style.top = (windowHeight - (contentHeight + 3 + footerHeight)) + 'px';
						footerElement.style.bottom = 'auto';
					}
					else {
						footerElement.style.position = 'static';
					}
				}
			}
		}
	
}

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