window.onload = function() {
	setFooter();
}
window.onresize = function() {
	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) && (document.body.className != 'iframed')) {
		var windowHeight=getWindowHeight();
		if (windowHeight>0) {
			var contentHeight=obj_height('header')+obj_height('content');
			var footerElement=document.getElementById('footer');
			var footerHeight=footerElement.offsetHeight;
			if (windowHeight >= (contentHeight+footerHeight)) {
				footerElement.style.position='absolute';
				footerElement.style.bottom='0px';
			}
			else {
				footerElement.style.position='relative';
			}
		}
	}
}
function obj_height(id) {
	obj = document.getElementById(id);
	return obj.offsetHeight;
}