function hide_functions(classSelector) {
	$("."+classSelector).hide();
}
function show_functions(classSelector) {
	$("."+classSelector).show();
}
function add_block(classSelector) {
	$("."+classSelector+":hidden:first").slideDown("fast");
	if (!$("."+classSelector+":hidden").size()) { $("."+classSelector+"-show_button").hide(); }
}

hide_functions('hide_on_load');
show_functions('show_on_load');