function status_clock() {
	theTime = window.setTimeout("runClock()", 1000);
	var today = new Date();
	var display= today.toLocaleString();
	status = display;
}

function go_page(main, sub) {
	switch (main) {
	case "system":
		switch (sub) {
		case "info":
			document.location.href = "./system_info.cgi";
			break;
		case "user":
			document.location.href = "./system_user.cgi";
			break;
		case "default":
			document.location.href = "./system_default.cgi";
			break;
		case "reboot":
			document.location.href = "./system_reboot.cgi";
			break;
		}
		break;

	case "device":
		switch (sub) {
		case "camera":
			document.location.href = "./device_camera.cgi";
			break;
		case "audio":
			document.location.href = "./device_audio.cgi";
			break;
		case "sensor":
			document.location.href = "./device_sensor.cgi";
			break;
		case "moalarm":
			document.location.href = "./device_moalarm.cgi";
			break;
		case "exalarm":
			document.location.href = "./device_exalarm.cgi";
			break;
		}
		break;

	case "record":
		switch (sub) {
		case "camera":
			document.location.href = "./record_camera.cgi";
			break;
		case "schedule":
			document.location.href = "./record_schedule.cgi";
			break;
		}
		break;

	case "network":
		switch (sub) {
		case "network":
			document.location.href = "./network_network.cgi";
			break;
		case "ddns":
			document.location.href = "./network_ddns.cgi";
			break;
		case "notification":
			document.location.href = "./network_notification.cgi";
			break;
		}
		break;

	case "quick":
		switch (sub) {
		case "setup":
			document.location.href = "./quick_setup.cgi";
			break;
		}
		break;

	case "wconf":
		document.location.href = "./system_info.cgi";
		break;

	case "live":
		document.location.href = "./web_monitoring.cgi";
		break;

	case "vod":
		document.location.href = "./web_playback.cgi";
		break;

	case "logout":
		document.location.href = "./logout_proc.cgi";
		break;
	}
}

function trim(value) {
	return value.replace(/(^\s*)|(\s*$)/g, "");
}

function isvalid_ip(ipvalue) {
	var ippattern = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
	var iparray = ipvalue.match(ippattern);

	var result = "";
	if (ipvalue == "0.0.0.0")
		return false;
	else if (ipvalue == "255.255.255.255")
		return false;

	if (iparray == null) {
		return false;
	} else {
		for (i = 0; i < 4; i++) {
			thissegment = iparray[i];
			if (thissegment > 255)
				return false;
			else if ((i == 0) && (thissegment > 255))
				return false;
		}
	}
	return true;
}

function isvalid_date(y, m, d) {
	var er = 0;
	var daa = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

	if ((y%1000 != 0) && (y%4 == 0)) daa[1] = 29;
	if ((d>daa[m-1]) || (d<1)) er = 1;
	if ((m<1) || (m>12)) er = 1;
	if ((m%1 != 0) || (y%1 != 0) || (d%1 != 0))  er = 1;

	if (er == 1)
		return false;

	return true;
}

function isvalid_data(input) {
    if (input == null || input.replace(/ /gi,"") == "") {
        return false;
    }
    return true;
}

function isvalid_num(input) {
    return (/^[0-9]+$/).test(input.remove(arguments[0])) ? true : false;
}


function isvalid_email(input) {
	return (/\w+([-+.]\w+)*@\w+([-.]\w+)*\.[a-zA-Z]{2,4}$/).test(input);
}