function expand_content(){
		var t = document.getElementById('content_holder');
		if (t){
			t.style.minHeight = (window.innerHeight || document.documentElement.offsetHeight || document.body.offsetHeight)-t.offsetTop+'px';
		}
	}

	function add_event (obj, event, func){
		if (window.addEventListener){
			obj.addEventListener(event, func, false);
		} else {
			obj.attachEvent('on'+event, func, false);
		}
	}

	// Expand Content
	function init(){
		add_event(window, 'load', expand_content);
		expand_content();
	}