resize_div = function () {
	//alert( window.screen.height )
	//alert( window.screen.width )
	var content = document.getElementById('footer');
	
	var node = 			content;
	var offsetTop = 	0;
	
	while ( node ){
		offsetTop += node.offsetTop;
		node = node.offsetParent;
	}
	
	content.style.height = (document.body.offsetHeight - offsetTop) + 'px';
}

addLoadEvent(function () { resize_div(); window.onresize = resize_div; });