function setFooter() {
	 		var windowHeight = document.documentElement.clientHeight;
			var resizerrElement = document.getElementById('resizer');
			var contentHeight = document.getElementById('content').offsetHeight;
			var footerHeight = document.getElementById('footer').offsetHeight;
			var containerTop = document.getElementById('container').offsetTop;
			
			if(contentHeight <= windowHeight-footerHeight-containerTop){
				resizerrElement.style.height=windowHeight-footerHeight-containerTop+"px";
			} else {	
				resizerrElement.style.height="auto";
			}
}

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