switch(htmlspecialchars(mysql_real_escape_string($_GET["ID"]))) {
	case "2": {
		require("aboutus.php");
	} break;
	case "3": {
		require("reffer.php");
	} break;
	case "4": {
		require("project.php");
	} break;
	case "5": {
		require("products.php");
	} break;
	case "6": {
		require("contact.php");
	} break;
}