function div($id, $class, $string)
{
	echo("<div id='".$id."' class='".$class."'>".$string."</div>");
	return("<div id='".$id."' class='".$class."'>".$string."</div>");
}
function li($string)
{
	echo("<li>".$string."</li>");
	return("<li>".$string."</li>");
}

div("header", "grid_12", li("Li within a div"));