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;
}
var placeToBe;
var footerElement;
function setFooter(top) {
	if (document.getElementById) {
		//var top=document.getElementById('guidecard').offsetHeight+document.getElementById('home').offsetHeight+document.getElementById('navigation').offsetHeight+document.getElementById('content').offsetHeight;
		var windowHeight = getWindowHeight();
		if (windowHeight > 0) {
			var contentHeight = top;
			footerElement = document.getElementById('bottom');
			var footerHeight  = footerElement.offsetHeight;
			//footerElement.innerHTML=footerHeight;
			if (windowHeight - (contentHeight + footerHeight) >= 0) {
				footerElement.style.position = 'absolute';
				footerElement.style.top = (windowHeight - footerHeight) + 'px';
			} else {
				footerElement.style.position = 'relative';
				footerElement.style.top = '20px';
				//document.getElementById('grid').display='inline';
			}
		}
	}
	
}
function adjustFooter(pos) {
	placeToBe=pos;
	setFooter(placeToBe);
}
window.onresize = function() {
	setFooter(placeToBe);
}