// Global definition
var tcp_proto = 6;
var udp_proto = 17;
var both_proto = 0;
var icmp_proto = 1;

// Alert message Area
var msg_alert_0001 = "The MAC address is assigned incorrect.";
var msg_alert_0002 = "The MAC address is duplication.";
var msg_alert_0003 = "The IP number must be assigned between 1 and 254.";
var msg_alert_0004 = "The IP is duplication.";
var msg_alert_0005 = "The IP Range is assigned incorrect.";
var msg_alert_0006 = "The IP Range is duplication.";
var msg_alert_0007 = "The DNS number is assigned incorrect.\n\nThe first number must be assigned between 1-224.\nThe 2nd and 3rd numbers must be assigned between 0-255.\nAnd the last number must be assigned between 1-254.";
var msg_alert_0010 = "The URL Address is assigned incorrect.";
var msg_alert_0012 = "The Policy Name must be assigned alphabet, number and [-_].";
var msg_alert_0014 = "The time is entered incorrect!";
var msg_alert_0020 = "You must input a Service Name!";
var msg_alert_0022 = "The Service Name is assigned incorrect.\n There are must be alphabet.";
var msg_alert_0024 = "The Service Port is assigned incorrect.\n It can be between 1 and 65535.";
var msg_alert_0026 = "The Service Name have exist!";
var msg_alert_0028 = "The Port Service is full.";
var msg_alert_0030 = "The Service Name is assigned incorrect.\n There are must be alphabet and number.";
var msg_alert_0032 = "The IP address can't equal to LAN IP address.";
var msg_alert_0034 = "The port number must be assigned between 1 and 65535.";
var msg_alert_0036 = "The Applicaion name is duplication!";
var msg_alert_0038 = "The Port Number is duplication.";
var msg_alert_0040 = "The application name must be assigned.";
var msg_alert_0042 = "The port number must be assigned.";
var msg_alert_0044 = "The IP address must be assigned.";
var msg_alert_0046 = "The IP address is assigned incorrect.";
var msg_alert_0050 = "The Subnet Mask is assigned incorrect.";
var msg_alert_0060 = "It must be assigned alphabet, number and [-_.].";
var msg_alert_0062 = "It must be assigned Domain Name or IP.";
var msg_alert_0064 = "It must be assigned alphabet, number";
var msg_alert_0066 = "It can not be entered space character.";
var msg_alert_0068 = "It must be assigned number.";

// function area
function isAlpha (s)
{
	var letters="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
	var i;

	for (i = 0; i < letters.length; i ++)
	{
		if (s == letters.charAt (i))
			return true;
	}
	return false;
}

function isNValidPort(s) {
	if((isBlank(s))||(isNaN(s))||(isNValidInt(s))||(isNegInt(s))||(s<1||s>65535))
		return true;
	else
		return false;
}
function isNValidFirstIP(s) {
	if((isBlank(s))||(isNaN(s))||(isNValidInt(s))||(isNegInt(s))||(s<1||s>224))
		return true;
	else
		return false;
}
function isNValidLastIP(s) {
	if((isBlank(s))||(isNaN(s))||(isNValidInt(s))||(isNegInt(s))||(s<1||s>254))
		return true;
	else
		return false;
}
function isBlank (s)
{
	for(i=0;i<s.length;i++)
	{
		c=s.charAt(i);
		if((c!=' ')&&(c!='\n')&&(c!='\t'))return false;
	}
	return true;
}
function isNValidInt(s)
{
	var i, c;
	
	for (i=0; i<s.length; i++) {
		c = s.charCodeAt(i);
		if ((c < 48) || (c > 57))
			return true;
	}
	return false;
}

function isNegInt(s)
{
	if (s<0)
		return true;
	else
		return false;
}

function is_NumberRange (str, s, e)
{
	var i, c;
	
	if (str.length == 0)
		return 0;
	
	for (i = 0; i < str.length; i++) {
		c = str.charAt (i);
		if (isBlank (c))	return false;
		if (isNaN (c))		return false;
	}	
	if (parseInt (str) < s)	return false;
	if (parseInt (str) > e)	return false;
	
	return true;
}


function DynamicGetField (F, num, f1, f2, f3, f4, IPField)
{
	var i;
	
	for (i = 0; i < F.elements.length; i++) {
		switch (num) {
		case 4:	if (F.elements[i].name == f4)	IPField[3] = F.elements[i];
		case 3:	if (F.elements[i].name == f3)	IPField[2] = F.elements[i];
		case 2:	if (F.elements[i].name == f2)	IPField[1] = F.elements[i];
		case 1:	if (F.elements[i].name == f1)	IPField[0] = F.elements[i];
		}
	}
	i = 0;
	switch (num) {
	case 4:
		if (IPField[3])	i++;
	case 3:
		if (IPField[2])	i++;
	case 2:
		if (IPField[1])	i++;
	case 1:
		if (IPField[0])	i++;
	}
	
	return (i == num) ? true: false;
}

function check_IPAddress (ip1, ip2, ip3, ip4, bIgnore)
{
	var rs = false;

	if (is_NumberRange (ip1.value, 0, 255) == false) {
		ip1.focus ();
	} else if (is_NumberRange (ip2.value, 0, 255) == false) {
		ip2.focus ();
	} else if (is_NumberRange (ip3.value, 0, 255) == false) {
		ip3.focus ();
	} else if (is_NumberRange (ip4.value, 0, 255) == false) {
		ip4.focus ();
	} else {
		var addr = ip1.value + "." + ip2.value + "." + ip3.value + "." + ip4.value;
		rs = (bIgnore == true) ? isValid_Zero_IP (addr): isValidIP (addr);
		if (rs == false)
			ip1.focus ();
	}
		
	return rs;
}

function check_URLKeyword (s)
{
	var i;
	
	for (i = 0; i < s.length; i ++)
	{
		switch (s.charAt (i)) {
		case '-':
		case '_':
		case '.':
		case '/':
		case '&':
		case '#':
		case '@':
		case ':':
		case '%':
			continue;
			break;
		}
		if (!isNaN (s.charAt (i)))	continue;
		if (isAlpha (s.charAt (i)))	continue;
		return false;
	}
	return true;
}

function check_PolicyName (s, pattern)
{
	if (s.length == 0)	return false;
	
	return check_AlphabetNumber (s, pattern);
}

function check_AlphabetNumber (s, pattern)
{
	var i, j, rs;
	if (s.length == 0)	return true;
	
	for (i = 0; i < s.length; i ++) {
		rs = false;
		for (j = 0; j < pattern.length; j++) {
			if (s.charAt (i) == pattern.charAt (j)) {
				rs = true;
				break;	
			}
		}
		if (rs)	continue;
		if (isBlank (s.charAt (i)) == false) {
			if (!isNaN (s.charAt (i)))	continue;
			if (isAlpha (s.charAt (i)))	continue;
		}
		return false;
	}
	return true;
}

function check_HaveSpaceIn (s)
{
	var i;
	
	for (i = 0; i < s.length; i++)
	{
		if (s.charAt (i) == ' ')
			if (i <= (s.length - 1))
				return true;
	}
	return false;
}

// the parameters are text box object.
function check_SubnetMask (ip1, ip2, ip3, ip4)
{
	var addr = ip1.value + "." + ip2.value + "." + ip3.value + "." + ip4.value;
	var rs = false;
	
	if (is_NumberRange (ip1.value, 0, 255) == false) {
		ip1.focus ();
	} else if (is_NumberRange (ip2.value, 0, 255) == false) {
		ip2.focus ();
	} else if (is_NumberRange (ip3.value, 0, 255) == false) {
		ip3.focus ();
	} else if (is_NumberRange (ip4.value, 0, 255) == false) {
		ip4.focus ();
	} else {
		rs = is_SubnetMask (ip1, ip2, ip3, ip4, true);
	}
	return rs;
}

function is_SubnetMask (ip1, ip2, ip3, ip4, bFocus)
{
	var iMask = new Array (2);
	var i, j, mask, bFlag;
	
	rs = true;
	bFlag = 0xFF;
	
	iMask[0] = (parseInt (ip1.value) << 8) | (parseInt (ip2.value));
	iMask[1] = (parseInt (ip3.value) << 8) | (parseInt (ip4.value));
	
	j = 0;
	for (i = 0; i < 2; i ++)  {
		for (mask = 0x8000; mask > 0; mask >>= 1) {
			if ((iMask[i] & mask) == 0) {
				bFlag = 0;
			} else {
				if (bFlag == 0) {
					if (bFocus == true) {
						if (j < 8)			ip1.focus ();
						else if (j < 16)	ip2.focus ();
						else if (j < 24)	ip3.focus ();
						else				ip4.focus ();
					}
					rs = false;
					break;
				}
			}
			j ++;
		}
	}
	return rs;
}

/* Modified By VergilWei. 10-03-2005 */
function isMacAddress (addr)
{
	var sub_addr;
	
	addr = addr.toUpperCase ();
	if (addr.search(/^[0-9A-F]{2}:[0-9A-F]{2}:[0-9A-F]{2}:[0-9A-F]{2}:[0-9A-F]{2}:[0-9A-F]{2}$/) == -1)
		return 1;	/* MAC error */
			
	sub_addr = addr.split (/:/);
	if (sub_addr.length < 6)  return 1;	/* MAC error */
	if (addr == "FF:FF:FF:FF:FF:FF")	return 2;	/* broadcast */
	if (addr == "00:00:00:00:00:00")	return 3;	/* zero MAC */
	if (addr == "01:00:5E:01:01:01")	return 4;	/* Multicast */
	if ((parseInt(sub_addr[0], 16) & 0x01) != 0)	return 5;	/* other error */
	
	return 0;
}

function isMAC_NULL (mac)
{
	var i, c;
	
	switch (mac.length) {
	case 12:
		for (i = 0; i < mac.length; i ++) {
			if (mac.charAt (i) != '0')
				return false;
		}
		break;
	case 17:
		for (i = 0; i < mac.length; i ++) {
			c = mac.charAt (i);
			if (c != '0' && c != '-' && c != ':')
				return false;
		}
		break;
	}
	return true;
}

function isMAC_Broadcast (mac)
{
	var i, c;
	
	switch (mac.length) {
	case 12:
		for (i = 0; i < mac.length; i ++) {
			c = mac.charAt (i);
			if (c != 'F' && c != 'f')
				return false;
		}
		break;
	case 17:
		for (i = 0; i < mac.length; i ++) {
			c = mac.charAt (i);
			if (c != 'f' && c != 'F' && c != '-' && c != ':')
				return false;
		}
		break;
	}
	return true;
}

function switchFieldValue (s1, s2)
{
	var tmp;
	
	tmp      = s1.value;
	s1.value = s2.value;
	s2.value = tmp;
}

// VergilWei. 01/19/2005
function format_MAC (s, split)
{
	var tmp, i, j;
	
	if (split.length == 0)	split = ":";
	
	tmp = "";
	j = 2;
	i = 0;
	if (s.length == 12) {
		while (i < s.length) {
			if (i == j) {
				tmp += split;
				j += 2;
			}
			tmp += s.charAt (i++);
		}
	} else if (s.length == 17) {
		while (i < s.length) {
			if (i == j) {
				tmp += split;
				j += 3;
				i ++;
			}
			tmp += s.charAt (i++);	
		}
	} else {
		return s;
	}
	return tmp.toUpperCase();
}

function strTrim (s)
{
	var iR, iL;
	
	iR = s.length - 1;
	iL = 0;
	while (iL <= iR) {
		if (s.charAt (iL) != ' ')
			break;
		iL++;
	}
	while (iR >= iL) {
		if (s.charAt (iR) != ' ')
			break;
		iR--;
	}
	
	if (iL == 0 && (iR == (s.length - 1)))
		return s;
		
	return s.substring (iL, iR + 1);
}

// VergilWei. 01/20/2005
function checkDuplication_Content (F, f, fNameHead)
{
	// f is Text box. F is Form object. fNameHead is prefix name of field's name.
	if (fNameHead.length == 0)	return false;
	if (f.value.length == 0)	return false;
	
	var i;
	var fname;
	
	for (i = 0; i < F.elements.length; i++) {
		fname = F.elements[i].name.substring (0, fNameHead.length);
		
		if (fname != fNameHead)				continue;
		if (f.name == F.elements[i].name)	continue;
		
		if (F.elements[i].value == f.value)	return true;
	}
	return false;
}

// VergilWei. 01/20/2005
function checkDuplication_PortRange1 (F, f, fNameHead, fNameTail, startCount, maxItem)
{
	if (fNameHead.length == 0)	return false;
	if (fNameTail.length == 0)	return false;
	if (f.value.length   == 0)	return false;
	
	var fPort1 = new Array (null, null, null, null);
	var tmpName1, tmpName2;
	var a1, a2, b1, b2, rs;
	
	a1 = a2 = parseInt (f.value);
	
	tmpName1 = "";
	if (f.name.substring (0, fNameHead.length) == fNameHead)
		tmpName1 = fNameTail + f.name.substring (fNameHead.length, fNameHead.length + 2);
	if (f.name.substring (0, fNameTail.length) == fNameTail)
		tmpName1 = fNameHead + f.name.substring (fNameTail.length, fNameTail.length + 2);
	
	if (tmpName1.length > 0) {
		rs = DynamicGetField (F, 1, tmpName1, "", "", "", fPort1);
		if (rs == true) {
			if (fPort1[0].value.length > 0) {
				a2 = parseInt (fPort1[0].value);
			}
		}
	}
	if (a1 > a2) {
		rs = a1;	a1 = a2;	a2 = rs;
	}
	for (i = startCount; i < maxItem; i++) {
		tmpName1 = fNameHead + i;
		tmpName2 = fNameTail + i;
		
		if (f.name == tmpName1 || f.name == tmpName2)	continue;
		
		rs = DynamicGetField (F, 2, tmpName1, tmpName2, "", "", fPort1);
		if (rs == false)	continue;
		
		b1 = (fPort1[0].value.length == 0) ? 0: parseInt (fPort1[0].value);
		b2 = (fPort1[1].value.length == 0) ? 0: parseInt (fPort1[1].value);
		
		if (b1 > b2) {
			rs = b1;	b1 = b2;	b2 = rs;
		}
		if (a1 > 0 && a2 > 0) {
			if (b1 > 0 && b2 > 0) {
				if (b1 >= a1 && b1 <= a2)	return true;
				if (b2 >= a1 && b2 <= a2)	return true;
				if (a1 >= b1 && a1 <= b2)	return true;
				if (a2 >= b1 && a2 <= b2)	return true;
			} else if (b1 > 0) {
				if (b1 >= a1 && b1 <= a2)	return true;
			} else if (b2 > 0) {
				if (b2 >= a1 && b2 <= a2)	return true;
			}
		} else if (a1 > 0) {
			if (b1 > 0 && b2 > 0) {
				if (a1 >= b1 && a2 <= b2)	return true;
			} else if (b1 > 0) {
				if (a1 == b1)				return true;
			} else if (b2 > 0) {
				if (a1 == b2)				return true;
			}
		} else if (a2 > 0) {
			if (b1 > 0 && b2 > 0) {
				if (a2 >= b1 && a2 <= b2)	return true;
			} else if (b1 > 0) {
				if (a2 == b1)				return true;
			} else if (b2 > 0) {
				if (a2 == b2)				return true;
			}
		}
	}
	return false;
}

function checkDuplication_PortRange4 (F, f, fNameHead, fNameTail, startCount, maxItem)
{
	//
	if (fNameHead.length == 0)	return false;
	if (fNameTail.length == 0)	return false;
	if (f.value.length   == 0)	return false;
	if (isBlank (f.value))		return false;
	
	var i, j, rs, a1, a2, b1, b2;
	var fPort1 = new Array (null, null, null, null);
	var fPort2 = new Array (null, null, null, null);
	var tmpName1, tmpName2;
	
	for (i = startCount; i < maxItem; i++) {
		tmpName1 = fNameHead + i;
		tmpName2 = fNameTail + i;
		
		rs = DynamicGetField (F, 2, tmpName1, tmpName2, "", "", fPort1);
		if (rs == false)	continue;
		
		a1 = (fPort1[0].value.length == 0) ? 0: parseInt (fPort1[0].value);
		a2 = (fPort1[1].value.length == 0) ? 0: parseInt (fPort1[1].value);
		
		if (a1 <= 0 && a2 <= 0)	continue;
		
		for (j = i; j < maxItem; j ++) {
			tmpName1 = fNameHead + j;
			tmpName2 = fNameTail + j;
			
			rs = DynamicGetField (F, 2, tmpName1, tmpName2, "", "", fPort2);
			if (rs == false)	continue;
			
			b1 = (fPort1[0].value.length == 0) ? 0: parseInt (fPort1[0].value);
			b2 = (fPort1[1].value.length == 0) ? 0: parseInt (fPort1[1].value);
			
			if (b1 <= 0 && b2 <= 0)	continue;
			
			if (a1 >0 || a2 > 0) {
				if (a1 > a2) {
					if (b1 > 0 && b1 >= a2 && b1 <= a1)	return true;
					if (b2 > 0 && b2 >= a2 && b2 <= a1)	return true;
				} else {
					if (b1 > 0 && b1 >= a1 && b1 <= a2)	return true;
					if (b2 > 0 && b2 >= a1 && b2 <= a2)	return true;
				}
			} else if (a1 > 0) {
				if (b1 == a1)	return true;
				if (b2 == a1)	return true;
			} else if (a2 > 0) {
				if (b1 == a2)	return true;
				if (b2 == a2)	return true;
			}
		}
	}
	return false;
}

// validate area
function validate_DomainName (f, bSetFocus)
{
	var pattern = "-_.";
	
	f.value = strTrim (f.value);
	if (f.value.length == 0)	return false;
	
	if (check_AlphabetNumber (f.value, pattern) == false)
	{
		alert (msg_alert_0060);
		f.value = f.defaultValue;
		f.focus();
//		if (bSetFocus)	f.focus ();
//		else			f.value = f.defaultValue;
		return false;
	}
	return true;
}

function validate_nat_kle (f)
{
	f.value = strTrim (f.value);
	if (f.value.length == 0)
		return true;

	if (f.value.indexOf("$") == 0) {
		var str = f.value.substring(1, f.value.length);
		if (check_HaveSpaceIn(str) == false) {
			if (isValid_Zero_IP(str) == true)
				return true;
			if (check_AlphabetNumber(str, pattern) == true)
				return true;				
		}		
	} else {
		return validate_ip_port(f);
	}
	alert (msg_alert_0062);
	f.value = f.defaultValue;
	f.focus();
	return false;
}

function validate_ip_port (f)
{
	var rs;
	var pattern = "-_.";
	
	f.value = strTrim (f.value);
	if (f.value.length == 0)
		return true;
	
	var idx = f.value.indexOf(":");

	if (idx != -1) {
		var domain = f.value.substring(0, idx-1);
		var port = f.value.substring(idx+1, f.value.length);;
		if (check_HaveSpaceIn (domain) == false && check_HaveSpaceIn (port) == false)
		{
			if (isValid_Zero_IP (domain) == true && is_NumberRange (port, 0, 65535) == true)
				return true;
			if (check_AlphabetNumber (domain, pattern) == true && is_NumberRange (port, 0, 65535) == true)
				return true;
		}
	} else {
		if (check_HaveSpaceIn (f.value) == false) {
			if (isValid_Zero_IP (f.value) == true)
				return true;
			if (check_AlphabetNumber (f.value, pattern) == true)
				return true;				
		}
	}
	
	alert (msg_alert_0062);
	f.value = f.defaultValue;
	f.focus();
	return false;
}

function validate_proxy (f)
{
	var rs;
	var pattern = "-_.";
	
	f.value = strTrim (f.value);
	if (f.value.length == 0)
		return true;
	
	if (check_HaveSpaceIn (f.value) == false)
	{
		if (isValid_Zero_IP (f.value) == true)
			return true;
		if (check_AlphabetNumber (f.value, pattern) == true)
			return true;
	}
	
	alert (msg_alert_0062);
	f.value = f.defaultValue;
	f.focus();
	return false;
}

function validate_IP1 (f)
{
	f.value = strTrim (f.value);
	if (f.value.length == 0)
		return true;
	if (isValidIP1 (f.value))
	{
		return true;
	}
	alert (msg_alert_0046);
	f.value = f.defaultValue;
	f.focus();
	return false;
}

function validate_IP0 (f)
{
	f.value = strTrim (f.value);
	if (f.value.length == 0)
		return true;
	if (isValid_Zero_IP (f.value))
	{
		return true;
	}
	alert (msg_alert_0046);
	f.value = f.defaultValue;
	f.focus();
	return false;
}

function validate_URLKeyword (f, bSetFocus)
{
	var pattern = "-_./&#@:%";
	
	f.value = strTrim (f.value);
	if (f.value.length > 0)
	{
		if (check_AlphabetNumber (f.value, pattern) == false)
		{
			alert (msg_alert_0010);
			f.value = f.defaultValue;
			f.focus();
//			f.value = f.defaultValue;
//			if (bSetFocus)	f.focus ();
			return false;
		}
	}
	return true;
}
function validate_string (f, pattern)
{
	
	f.value = strTrim (f.value);
	
	if (f.value.length > 0)
	{
		if (check_AlphabetNumber (f.value, pattern) == false)
		{
			alert (msg_alert_0064 + " and [" + pattern + "].");
			f.value = f.defaultValue;
			f.focus();
			return false;
		}
	}
	return true;
}

function validate_PolicyName (f, bSetFocus)
{
	var pattern = "-_";
	
	if (check_PolicyName (f.value, pattern) == false) {
		alert (msg_alert_0012);
		f.value = f.defaultValue;
		f.focus();
//		if (bSetFocus)	f.focus();
//		else			f.value = f.defaultValue;
		return false;
	}
	return true;
}

function validate_ID (f)
{
	f.value = strTrim (f.value);
	if (f.value.length > 0)
	{
		if (check_HaveSpaceIn (f.value) == true)
		{
			alert (msg_alert_0066);
			f.value = f.defaultValue;
			f.focus();
			return false;
		}
	}
	return true;	
}

function validate_FirstIP (f, bSetFocus)
{
	if (f.value == 0)	return true;

	if (isNValidFirstIP (f.value) || isBlank (f.value)) {
		alert (msg_alert_0007);
		f.value = f.defaultValue;
		f.focus();
//		if (bSetFocus)	f.focus ();
//		else			f.value = f.defaultValue;
		return false;
	}
	return true;
}

function validate_LastIP (f, bSetFocus, msg_id)
{
	if (f.value == 0)	return true;

	if (isNValidLastIP (f.value) || isBlank (f.value)) {
		alert (msg_id);
		f.value = f.defaultValue;
		f.focus();
//		if (bSetFocus)	f.focus ();
//		else			f.value = f.defaultValue;
		return false;
	}
	return true;
}

function validate_IP (f, bSetFocus, msg_id)
{
	if (f.value == 0)		return true;
	
	if (isNValidIP (f.value) || isBlank (f.value)) {
		alert (msg_id);
		f.value = f.defaultValue;
		f.focus();
//		if (bSetFocus)	f.focus ();
//		else			f.value = f.defaultValue;
		return false;
	}
	return true;
}

function validate_IPAddress4F (F, f, startCount)
{
	if (f == null)	return true;
	
	var aFields = new Array (null, null, null, null);
	var fName = new Array (4);
	var rs, i, addr;

	for (i = 0; i < 4; i ++) {
		fName[i] = f.name.substring (0, f.name.length - 1) + Number (startCount++).toString ();
	}
	
	rs = DynamicGetField (F, 4, fName[0], fName[1], fName[2], fName[3], aFields);
	if (rs == true) {
		for (i = 0; i < 4; i++) {
			rs = false;
			if (aFields[i].value.length == 0)	rs = true;
			if (isBlank (aFields[i].value))		rs = true;
			if (is_NumberRange (aFields[i].value, 0, 255) == false)	rs = true;
			if (rs == true) {
				alert (msg_alert_0046);
				aFields[i].focus ();
				return false;	
			}
		}	
/*
		addr = aFields[0].value + "." + aFields[1].value + "." + aFields[2].value + "." + aFields[3].value;
		rs = isValid_Zero_IP (addr);
		if (rs == false) {
			alert (msg_alert_0046);
			aFields[0].focus ();
			return false;
		}
*/
	}
	
	return true;
}


function validate_SubnetMask (F, f, startCount)
{
	if (f == null)	return true;
	
	var aFields = new Array (null, null, null, null);
	var fName = new Array ("", "", "", "");
	var rs, i, addr;

	for (i = 0; i < 4; i ++) {
		fName[i] = f.name.substring (0, f.name.length - 1) + Number (startCount++).toString ();
	}
	
	rs = DynamicGetField (F, 4, fName[0], fName[1], fName[2], fName[3], aFields);
	if (rs == true) {
		for (i = 0; i < 4; i++) {
			rs = false;
			
			if (aFields[i].value.length == 0)	rs = true;
			if (isBlank (aFields[i].value))		rs = true;
			if (is_NumberRange (aFields[i].value, 0, 255) == false)	rs = true;
			if (rs == true) {
				alert (msg_alert_0050);
				f.value = f.defaultValue;
				f.focus();
				return false;	
			}
		}
		rs = is_SubnetMask (aFields[0], aFields[1], aFields[2], aFields[3], false);
		if (rs == false) {
			alert (msg_alert_0050);
			f.value = f.defaultValue;
			f.focus();
			return false;
		}
	}
	
	return true;
}
function validate_Port (f)
{
	return validate_Number (f, 0, 65535);
}

function validate_Number (f, startCount, endCount)
{
	var msg;
	
	if (is_NumberRange (f.value, startCount, endCount) == false) {
		msg = "It must be assigned between " + startCount + " and " + endCount + ".";
		alert (msg);
		f.value = f.defaultValue;
		f.focus();
		return false;
	}
	
	return true;
}

function valNumber (f, Len)
{
	var i, endCount = "";
	
	for (i = 0; i < Len; i++)
		endCount += "9";
	
	if (is_NumberRange (f.value, 0, parseInt (endCount)) == false)
	{
		var msg = "It must be assigned between 0 and " + endCount + ".";
		alert (msg);
		f.value = f.defaultValue;
		f.focus();
		return false;
	}
	return true;
}

function valPhoneNumber(f)
{
	var i;
	
	for (i = 0; i < f.value.length; i ++)
	{
		if (isNaN (f.value.charAt (i)) == true) {
			alert (msg_alert_0068);
			f.value = f.defaultValue;
			f.focus();
			return false;
		}
	}
	return true;
}

function valid_range(I,start,end,M)
{
	//if(I.value == ""){
	//	if(M == "IP" || M == "Port")
	//		I.value = "0";
	//}
	M1 = unescape(M);
	isdigit(I,M1);

	d = parseInt(I.value, 10);	
	if ( !(d<=end && d>=start) )		
	{		
		alert(M1 +' value is out of range ['+ start + ' - ' + end +']');
		I.value = I.defaultValue;
		I.focus();
	}
	else
		I.value = d;	// strip 0

}

function isdigit(I,M)
{
	for(i=0 ; i<I.value.length; i++){
		ch = I.value.charAt(i);
		if(ch < '0' || ch > '9'){
			alert(M +' have illegal characters, must be [ 0 - 9 ]');
			I.value = I.defaultValue;	
			return false;
		}
	}
	return true;
}


function isNValidInt(s)
{
	var i, c;
	
	for (i=0; i<s.length; i++) {
		c = s.charCodeAt(i);
		if ((c < 48) || (c > 57))
			return true;
	}
	return false;
}

function isNegInt(s)
{
	if (s<0)
		return true;
	else
		return false;
}

function is_NumberRange (str, s, e)
{
	var i, c;
	
	if (str.length == 0)
		return 0;
	
	for (i = 0; i < str.length; i++) {
		c = str.charAt (i);
		if (isBlank (c))	return false;
		if (isNaN (c))		return false;
	}	
	if (parseInt (str) < s)	return false;
	if (parseInt (str) > e)	return false;
	
	return true;
}
function IPCheck(I) {
	if (is_NumberRange (I.value, 0, 255) == false)
    {
        alert('IP value is out of range [0 - 255]');
        //I.value = I.defaultValue;
        I.focus ();
        return false;
    }
}

function IP1to254(I)
{
    if (is_NumberRange (I.value, 1, 254) == false)
    {
        alert('IP value is out of range [1 - 254]');
        I.focus ();
        return false;
        //I.value = I.defaultValue;
    }
}

function netMaskdigitCheck(I, F)
{
    if (is_NumberRange (I.value, 0, 255) == true) {
    	d = parseInt(I.value, 10);
    	switch (parseInt (I.value)) {
    	case 0:
    	case 128:
    	case 192:
    	case 224:
    	case 240:
    	case 248:
    	case 252:
    	case 254:
    	case 255:
    		break;
    	default:
    		alert('Incorrect NetMask value!');
    		I.value = I.defaultValue;
		I.focus();
    	}
    } else {
    	alert('Incorrect NetMask value!');
    	I.value = I.defaultValue;
	I.focus();
    }
}

function netMaskdigitCheck3(I, F)
{
	netMaskdigitCheck (I, F);
}

function ValidIP(I1, I2, I3, I4)
{
	var msg = "Illegal IP value !";
    var A1 = parseInt(I1.value, 10);
    var A2 = parseInt(I2.value, 10);
    var A3 = parseInt(I3.value, 10);
    var A4 = parseInt(I4.value, 10);
    
    if (!is_NumberRange (I1.value, 1, 224) ||
    	!is_NumberRange (I2.value, 0, 255) ||
    	!is_NumberRange (I3.value, 0, 255) ||
    	!is_NumberRange (I4.value, 1, 254)) {
    	alert (msg);
    	return false;
    }
    if (((A1 | A2 | A3 | A4) && (!(A1 < 224 && A1 > 0 && A1 != 127) || !(A2 <
        256 && A2 >= 0) || !(A3 < 256 && A3 >= 0) || !(A4 < 255 && A4 > 0))) ||
        isNaN(I1.value) || isNaN(I2.value) || isNaN(I3.value) || isNaN(I4.value)
        )
    {
        alert(msg);
        return false;
    }
    return true;
}

function FirstIP(I)
{
	if (is_NumberRange (I.value, 1, 223) == false) {
		alert('Illegal IP value !!!');
		I.focus ();
		return false;
	}
	if (parseInt (I.value, 10) == 127)
    {
        alert('Illegal IP value !!!');
        I.value = I.defaultValue;
        return false;
    }
    return true;
}

function sel_func(obj, value)
{ 
    for (i = 0; i < obj.options.length; i++)
	{
        if (obj.options[i].value == value)
        {
            obj.selectedIndex = i;
            break;
        }
	}
}

function rad_func(obj, value)
{
    for (i = 0; i < obj.length; i++)
        if (obj[i].value == value)
        {
            obj[i].checked = 1;
            break;
        }
}

function chk_func(obj, value)
{
    if (obj.value == value)
        obj.checked = 1;
}

function resetValue(F)
{
/*
    for (i = 0; i < F.elements.length; i++)
        F.elements[i].value = F.elements[i].defaultValue;
    init(F);
*/
	history.go(0);
}

function openWin()
{
    window.open('help.htm', 'Help', 'alwaysRaised,resizable,scrollbars,width=400,height=600');
}

function choose_enable(obj)
{
    obj.disabled = false;
    obj.style.backgroundColor = '';
}

function choose_disable(obj)
{
    obj.disabled = true;
    obj.style.backgroundColor = '#e0e0e0';
}

function objDisable(F, I, begName, endName)
{
    var num = F.elements.length;
    for (j = 3; j < num - 3; j++)
    {
        if (F.elements[j].name == begName)
            break;
    }
    for (i = j; i < num; i++)
    {
        if (I.checked == 1)
        {
            choose_disable(F.elements[i]);
        }
        else
        {
            choose_enable(F.elements[i]);
        }
        if (F.elements[i].name == endName)
            break;
    }
}

function show_UI_06()
{
    len = document.UI_06.length;
    for (i = 0; i < len; i++)
        document.UI_06[i].src = "/images/UI_06.gif";
}

function reload_image(I)
{
    if (I == 0)
        setTimeout('document.UI_Linksys.src="/images/UI_Linksys.gif"', 300);
    else if (I == 1)
        setTimeout('document.UI_Cisco.src = "/images/UI_Cisco.gif"', 300);
    else if (I == 10)
        setTimeout('document.UI_10.src = "/images/UI_10.gif"', 250);
    else if (I == 7)
        setTimeout('document.UI_07.src = "/images/UI_07.gif"', 250);
    else if (I == 2)
        setTimeout('document.UI_03.src = "/images/UI_03.gif"', 250);
    else if (I == 3)
        setTimeout('document.UI_02.src = "/images/UI_02.gif"', 250);
    else if (I == 6)
        setTimeout('document.UI_06.src = "/images/UI_06.gif"', 250);
}

function replaceString(fullS, oldS, newS) {
    // Replaces oldS with newS in the string fullS   
    for (var i=0; i<fullS.length; i++) {      
	    if (fullS.substring(i,i+oldS.length) == oldS) {         
	        fullS = fullS.substring(0,i)+newS+fullS.substring(i+oldS.length,fullS.length)      
	    }   
    }   
	return fullS;
}

function getRadioValue(F) {
    for (i=0; i<F.length; i++) {
	    if (F[i].checked)
		    return F[i].value;
	}
}

var tcp_proto = 6, udp_proto = 17, both_proto = 0, icmp_proto = 1;

// address mapping
var ADDRESS_MAP_NUMBER_PER_INTERFACE = 16;
var ADDRESS_MAP_TOTAL_COUNT = 16;

// virtual server
var VIRTUAL_SERVER_NUMBER_PER_INTERFACE = 20;
var VIRTUAL_SERVER_TOTAL_COUNT = 20;

// DMZ
var DMZ_NUMBER_PER_INTERFACE = 16;
var DMZ_TOTAL_COUNT = 16;

var PORT_MAX = 10, IP_MAX = 1;
var MAX_PPPOE_SESSION = 4;

// backup log and config
var BACKUP_LOG_NAME = "backup_log.txt";
var BACKUP_CONFIG_NAME = "backup_config.bin";

// b_port, e_port
function PORT_RANGE()
{
	this.protocol = 0; // 0(both), tcp or udp
	this.b_port = 0;
	this.e_port = 0;
};

function IP_RANGE()
{
	this.ip = ""; // start ip
	this.count = 0;
};

function Interface_T()
{
	this.ip = new Array(4);
	this.mask = new Array(4);
	this.gateway = new Array(4);
	
	var i;
	for(i=0; i<4; i++)
	{
		this.ip[i] = 0;
		this.mask[i] = 0;
		this.gateway[i] = 0;
	}
};

function IsSameNetwork(int1, int2)
{
	var i;
	if(int1.ip == 0 || int2.ip == 0) return false;
	for(i=0;i<4;i++)
		if( (int1.ip[i] & int1.mask[i]) != (int2.ip[i] & int2.mask[i]) ) return false;

	return true;
}

// utility
function getElementsByFieldName(target_form, field)
{
	var i;
	var form;
	var value;
	if(target_form == null || field == null) return -1;
	for(i=0; i<target_form.length; i++)
	{
		if(target_form.elements[i].name == field)
			return i;
	}
	return -1;
}

// ex: strIP = "192.168.010.1"
function parseIP(strIP)
{
	var val1, val2, val3, val4;
	var IP = strIP.split(/\./);
	val1 = new Number(IP[0]);
	val2 = new Number(IP[1]);
	val3 = new Number(IP[2]);
	val4 = new Number(IP[3]);
	return (val1.valueOf() + '.' + val2.valueOf() + '.' + val3.valueOf() + '.' + val4.valueOf() )
}

function isValidMASK (addr)
{
    var sub_addr;
    if (addr.search(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) == -1)
        return false;
    
    return true;
}

function isValidIP (addr)
{
    var sub_addr;
    var net_id;
    var host_id;

    if (addr.search(/^\d{1,3}\.\d{1,3}\.\d{1,3}\./) == -1)
        return false;
    sub_addr = addr.split(/\./);
    if(sub_addr.length < 4) return false;
    if(sub_addr[3] == "*")
    	sub_addr[3] = "1";
    else
    {
    	if(isNaN(sub_addr[3]) == true) return false;
    }

    if (sub_addr[0] > 0xff || sub_addr[1] > 0xff || sub_addr[2] > 0xff || sub_addr[3] > 0xff)
        return false;

    if(sub_addr[0] < 128) /* A class */
    {
        if(sub_addr[0] == 0 || sub_addr[0] == 127)
            return false;
        host_id = sub_addr[1] * 0x10000 + sub_addr[2] * 0x100 + sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xffffff)
            return false;
    }
    else if(sub_addr[0] < 192) /* B class */
    {
        host_id = sub_addr[2] * 0x100 + sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xffff)
            return false;
    }
    else if(sub_addr[0] < 224) /* C class */
    {
        host_id = sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xff)
            return false;
    }
    else  /* Limit broadcast, Multicast net */
    {
        return false;
    }

    return true;
}

function isValidIP1 (addr)
{
    var sub_addr;
    var net_id;
    var host_id;

    if (addr.search(/^\d{1,3}\.\d{1,3}\.\d{1,3}\./) == -1)
        return false;
    sub_addr = addr.split(/\./);
    if(sub_addr.length < 4) return false;
    if(sub_addr[3] == "*")
    	sub_addr[3] = "1";
    else if(sub_addr[3] == "0")
    	sub_addr[3] = "1";
    else
    {
    	if(isNaN(sub_addr[3]) == true) return false;
    }

    if (sub_addr[0] > 0xff || sub_addr[1] > 0xff || sub_addr[2] > 0xff || sub_addr[3] > 0xff)
        return false;

    if(sub_addr[0] < 128) /* A class */
    {
        if(sub_addr[0] == 0 || sub_addr[0] == 127)
            return false;
        host_id = sub_addr[1] * 0x10000 + sub_addr[2] * 0x100 + sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xffffff)
            return false;
    }
    else if(sub_addr[0] < 192) /* B class */
    {
        host_id = sub_addr[2] * 0x100 + sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xffff)
            return false;
    }
    else if(sub_addr[0] < 224) /* C class */
    {
        host_id = sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xff)
            return false;
    }
    else  /* Limit broadcast, Multicast net */
    {
        return false;
    }

    return true;
}

// allow 0.0.0.0
function isValid_Zero_IP (addr)
{
    var sub_addr;
    var net_id;
    var host_id;
    if (addr.search(/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) == -1)
        return false;
    sub_addr = addr.split(/\./);        
    if (sub_addr[0] > 0xff || sub_addr[1] > 0xff || sub_addr[2] > 0xff || sub_addr[3] > 0xff)
        return false;        
	if(sub_addr[0] == 0 && sub_addr[1] == 0 && sub_addr[2] == 0 && sub_addr[3] == 0)
		return true;
    
    if(sub_addr[0] < 128) /* A class */
    {
        if(sub_addr[0] == 0 || sub_addr[0] == 127)
            return false;
        host_id = sub_addr[1] * 0x10000 + sub_addr[2] * 0x100 + sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xffffff)
            return false;
    }
    else if(sub_addr[0] < 192) /* B class */
    {
        host_id = sub_addr[2] * 0x100 + sub_addr[3] * 0x1; 
        if(host_id == 0 || host_id == 0xffff)
            return false;           
    }
    else if(sub_addr[0] < 224) /* C class */
    {
        host_id = sub_addr[3] * 0x1;
        if(host_id == 0 || host_id == 0xff)
            return false;             
    }
    else  /* Limit broadcast, Multicast net */
    {
        return false;                                         
    }
    
    return true;
}

// parse port range string
function parseValueRange(value)
{
	var sub_value, range, sub_range;
	var i;
	var value1, value2;
	
	// check '*'
	if(value == null || value.length == 0) return null;
	if(value.length == 1)
	{
		if(value == '*')
		{
			range = new Array(1);			
			range[0] = new PORT_RANGE();
			range[0].b_port = 1;
			range[0].e_port = 65535;
			return range;
		}
	}
		
	sub_value = value.split(/\,/);
	range = new Array(sub_value.length);
	for(i=0; i < sub_value.length; i++)
	{
		range[i] = new PORT_RANGE();
		sub_range = sub_value[i].split(/\-/);
		if(sub_range.length == 1)
		{
			if(isNaN(sub_range[0]) == true) return null;
			range[i].b_port = range[i].e_port = sub_range[0];
		}
		else if(sub_range.length == 2)
		{
			if(isNaN(sub_range[0]) == false && sub_range[1] == '*')
			{
				value1 = new Number(sub_range[0]);
				range[i].b_port = sub_range[0];
				range[i].e_port = 65535;
			}
			else
			{
				if(isNaN(sub_range[0]) == true || isNaN(sub_range[1]) == true) return null;
				value1 = new Number(sub_range[0]);
				value2 = new Number(sub_range[1]);
				if(value1.valueOf() > value2.valueOf())
				{
					range[i].b_port = sub_range[1];
					range[i].e_port = sub_range[0];				
				}
				else
				{
					range[i].b_port = sub_range[0];
					range[i].e_port = sub_range[1];
				}
			}
		}
		else
			return null;
	}	
	return range;
}

function parseIPValueRange(value)
{
	var sub_value, range, sub_range;
	var i;
	var value1, value2;
	var sub_addr;	
	
	// check '*'
	if(value == null || value.length == 0) return null;
	if(value.length == 1)
	{
		if(value == '*')
		{
			range = new Array(1);			
			range[0] = new IP_RANGE();
			range[0].ip = "0.0.0.0";
			range[0].count = 1;
			return range;
		}
		return null;		
	}
	
	sub_value = value.split(/\,/);
	range = new Array(sub_value.length);
	for(i=0; i < sub_value.length; i++)
	{
		range[i] = new IP_RANGE();
		sub_range = sub_value[i].split(/\-/);
		if(sub_range.length == 1)
		{  		
			if(isValidIP(sub_range[0]) == false) return null;
    		sub_addr = sub_range[0].split(/\./);
    		if(sub_addr[3] == "*")
    		{
    			sub_addr[3] = "1";
				range[i].ip = sub_addr[0] + "." + sub_addr[1] + "." + sub_addr[2] + "." + sub_addr[3];
				range[i].ip = parseIP(range[i].ip);
				range[i].count = 254;
    		}
    		else
    		{
				range[i].ip = sub_addr[0] + "." + sub_addr[1] + "." + sub_addr[2] + "." + sub_addr[3];
				range[i].ip = parseIP(range[i].ip);
				range[i].count = 1;    			
    		}
		}
		else if(sub_range.length == 2)
		{
			if(isValidIP(sub_range[0]) == false || isNaN(sub_range[1]) == true ) return null;
    		sub_addr = sub_range[0].split(/\./);
			value1 = new Number(sub_addr[3]);
			value2 = new Number(sub_range[1]);
			if(value1.valueOf() > value2.valueOf())
			{
				range[i].ip = sub_addr[0] + "." + sub_addr[1] + "." + sub_addr[2] + "." + value2.valueOf();
				range[i].count = value1.valueOf() - value2.valueOf() + 1;
			}
			else
			{
				range[i].ip = sub_addr[0] + "." + sub_addr[1] + "." + sub_addr[2] + "." + value1.valueOf();
				range[i].count = value2.valueOf() - value1.valueOf() + 1;
			}
		}
		else
			return null;
	}	
	return range;
}

function trueValueToInt(inValue) {

	//alert("inValue:" + inValue);
	if (inValue) 
		return 1;
	else 
		return 0;
}

function intValueToBool(inValue) {

	//alert("inValue:" + inValue);
	if (inValue == 0) 
		return false;
	else 
		return true;
}
function isBlank(s) {
	for(i=0;i<s.length;i++) {
		c=s.charAt(i);
		if((c!=' ')&&(c!='\n')&&(c!='\t'))return false;}
	return true;
}

function isNValidIP(s) {
	if (!isBlank(s)) {
		if((isNaN(s))||(s<0||s>255))
			return true;
		else
			return false;
	}  else  {
		return false;
	}
}

function isNValidPort(s) {
	if((isBlank(s))||(isNaN(s)) || (s>65535) || (s<1))
		return true;
	else
		return false;
}
function isValidDomainName (f) {
	var patt = "abcdefghijklmnopqrstuvwxyz0123456789-_.";
	var s = f.value.toLowerCase ();
	var i, j, isOK, numMatch;
	
	numMatch = 0;
	for (i = 0; i < s.length; i++) {
		isOK = false;
		for (j = 0; j < patt.length; j ++) {
			if (s.charAt (i) == patt.charAt (j)) {
				isOK = true;
				numMatch++;
				break;
			}
		}
	}
	if (s.length > 0) {
		if (s.length != numMatch) {
			var msg = "The field must be [0-9], [A-Z], [a-z] and [_-.].";
			alert (msg);
			f.focus ();
			return false;
		}
	}
	return true;
}

function getQueryString(key) {
	var s = document.URL.split("?");
	if (s.length == 2) {
		var ss = s[1].split("&");
		for (i=0; i<ss.length; i++) {
			var sss = ss[i].split("=");
			if (sss.length == 2 && sss[0] == key) {
				//title = sss[1].replace("+", " ");
				//title = title.replace("%20", " ");
				return decodeURIComponent(sss[1]);
			}
		}
	}
	return "";
}