/*
Get window height to position footer.
Modified from http://www.alistapart.com/articles/footers/
*/

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();
		var windowHeight = (windowHeight - 73);
		if (windowHeight > 0) {
			var contentHeight = document.getElementById('content').offsetHeight;
			var footerElement = document.getElementById('footer');
			var footerHeight  = footerElement.offsetHeight;
			if (windowHeight - (contentHeight + footerHeight) >= 0) {
				footerElement.style.marginTop = (windowHeight - (contentHeight + footerHeight)) + 'px';
				}
			else {
				footerElement.style.top = '0px';
				}
			}
		}
	}
window.onload = function() {
	setFooter();
	}
window.onresize = function() {
	setFooter();
	}