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('outer').offsetHeight;
			var footerHeight = document.getElementById('footer').offsetHeight;
			var footerElement = document.getElementById('footer');
			//alert(contentHeight);
			//alert(contentHeight);
			if (windowHeight - (contentHeight + footerHeight) >= 0) {
				footerElement.style.height = (windowHeight - contentHeight)-40 + 'px';
			}
			else {
				footerElement.style.height = '60px';
			}
		}
	}
}

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