// JavaScript Document
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('wrapper').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();
}