function resizeDiv() {
	var main = document.getElementById('layout_content_left');
	var right = document.getElementById('layout_right');
	if(main.offsetHeight < right.offsetHeight) {
		main.style.height = right.offsetHeight + 'px';
	}
}

function showHideBlogDateGroup(group) {
	var e = document.getElementById(group);
	if(e.style.visibility != 'visible') {
		e.style.position = 'relative';
		e.style.visibility = 'visible';
	} else {
		e.style.position = 'absolute';
		e.style.visibility = 'hidden';
	}
	resizeDiv();
}