/**********************************************************
 * scripts.js
 *
 * Stuart Connolly
 * http://stuconnolly.com/
 *
 * Copyright (c) 2009 Stuart Connolly. All rights reserved.
 **********************************************************/

// Footer placement - http://www.alistapart.com/articles/footers/

/**
 * Get the height of the current window.
 */
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;
}

/**
 * Set the footer.
 */
function setFooter() 
{
	if (document.getElementById) {
		var windowHeight = getWindowHeight();
		
		if (windowHeight > 0) {
			var contentHeight = document.getElementById('container').offsetHeight;
			var footerElement = document.getElementById('footer');
			var footerHeight  = footerElement.offsetHeight;
			 
			if (windowHeight - (contentHeight + footerHeight) >= 0) {
				footerElement.style.position = 'relative';
				footerElement.style.top = (windowHeight - (contentHeight + footerHeight)) + 'px';
			}
			else {
				footerElement.style.position = 'static';
			}
		}
	}
}

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

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