function clearBox(box) {
	if(box.value==box.defaultValue) {
		box.value = "";
	}
}

function even_heights() {
	var container = jQuery('#container');
	var sidebar_r = jQuery('#right_sidebar');
	var container_height = container.height();
	var sidebar_height   = sidebar_r.height();
	if (sidebar_height > container_height) {
		container.css('height',sidebar_height + 42);
	}
	else {
		sidebar_r.css('height',container_height - 42);//42 for margins
	}
}