var myNAME=1,myEMAIL=2,myTEXT=3,myVPN=4,myMAC=5,myIP=6,myMASK=7,myNumber=8,myString=9,myDomain=10,myNAME2=11,myNAME3=12,myURL=13,mySubnet=14,myIPV6=15,myPwd=16,myStrictPwd=17,myTEXT1=18;
var Ret_Pass=0;
var Ret_Empty=1,Ret_Space=2,Ret_Limited=3,Ret_First_Limited=4,Ret_Invalid=5,Ret_Double_Exist=6,Ret_Zero=7;
var HOST_IP=0, BROADCAST_IP=1;

function check_value(myElement, checkType) {
    var Chk_Result = Ret_Pass;
    var value_flag = 0;
    var myValue = '';

    myElement = myElement.toLowerCase();
    VALUE_RULES = /^document\..*\..*/g;
    if (myElement != "document" && myElement.match(VALUE_RULES)) {
	value_flag = 0;
	myValue = eval(myElement+'.value');
    } else {
	value_flag = 1;
	myValue = myElement;
    }

    if (myValue.length == 0)
	Chk_Result = Ret_Empty;
    else {
	switch (checkType) {
	    case myNAME :
		if (myValue.charAt(0) == "-")
		    return Ret_First_Limited;

		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) < "-") ||
			((myValue.charAt(i) > "-") && (myValue.charAt(i) < "0")) ||
			((myValue.charAt(i) > "9") && (myValue.charAt(i) < "A")) ||
			((myValue.charAt(i) > "Z") && (myValue.charAt(i) < "_")) ||
			((myValue.charAt(i) > "_") && (myValue.charAt(i) < "a")) ||
			(myValue.charAt(i) > "z")) {
			if (myValue.charAt(i) == ".")
			    continue;
			Chk_Result = Ret_Limited;
			break;
		    }
		}
		break;

	    case myNAME2 :
		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) < "0") ||
			((myValue.charAt(i) > "9") && (myValue.charAt(i) < "A")) ||
			((myValue.charAt(i) > "Z") && (myValue.charAt(i) < "_")) ||
			((myValue.charAt(i) > "_") && (myValue.charAt(i) < "a")) ||
			(myValue.charAt(i) > "z")) {
			Chk_Result = Ret_Limited;
			    break;
		    }
		}
		break;

	    case myNAME3 :
		for (var space_count = 0, i = 0; i < myValue.length; i++) {
		    if (myValue.charAt(i) == unescape('%20'))
			space_count++;
		}
		if (space_count == myValue.length)
		    return Ret_Space;
		break;

	    case myEMAIL :
//		var EMAIL_RULES = "^[a-zA-Z][\\w\\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\\w\\.-]*[a-zA-Z0-9]$";
//		var EMAIL_RULES = "/.+@.+\..+/";
		var at_count = 0;
		for (var i = 0, dot_count = 0; i < myValue.length; i++) {
		    if (myValue.charAt(i) == unescape('%20')) {
			Chk_Result = Ret_Space;
			break;
		    }
		    if (myValue.charAt(i) == "@") {
			at_count++;
			if (at_count > 1) {
			    Chk_Result = Ret_Invalid;
			    break;
			}
		    }
		    if (myValue.charAt(i) == ".")
			dot_count++;
		    if ((myValue.charAt(i) < "-") ||
			((myValue.charAt(i) > ".") && (myValue.charAt(i) < "0")) ||
			((myValue.charAt(i) > "9") && (myValue.charAt(i) < "@")) ||
			((myValue.charAt(i) > "Z") && (myValue.charAt(i) < "_")) ||
			((myValue.charAt(i) > "_") && (myValue.charAt(i) < "a")) ||
			(myValue.charAt(i) > "z")) {
			Chk_Result = Ret_Invalid;
			break;
		    }
		}
		if ((dot_count == 0) || (at_count == 0) || ((eval(myValue.length) - at_count) < 3))
		    return Ret_Invalid;
		break;

	    case myTEXT :
		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) == unescape('%20')) ||
			(myValue.charAt(i) == unescape('%22')) ||
			(myValue.charAt(i) == unescape('%27')) ||
			(myValue.charAt(i) == unescape('%3C')) ||
			(myValue.charAt(i) == unescape('%3E')) ||
			(myValue.charAt(i) == unescape('%5C'))) {
			Chk_Result = Ret_Limited;
			break;
		    }
		}
		break;

	    case myTEXT1 :
		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) == unescape('%22')) ||
			(myValue.charAt(i) == unescape('%27')) ||
			(myValue.charAt(i) == unescape('%3C')) ||
			(myValue.charAt(i) == unescape('%3E')) ||
			(myValue.charAt(i) == unescape('%5C'))) {
			Chk_Result = Ret_Limited;
			break;
		    }
		}
		break;

	    case myNumber :
		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) > "9") || (myValue.charAt(i) < "0")) {
			Chk_Result = Ret_Invalid;
			break;
		    }
		}
		break;

	    case myString :
		if (myValue.search("[<>/\"']") >= 0 || myValue.search(/\\/) >= 0)
		    Chk_Result = Ret_Invalid;
		break;

	    case myVPN :
		if ((myValue.charAt(0) == "-") || ((myValue.charAt(0) >= "0") && (myValue.charAt(0) <= "9")))
		    return Ret_First_Limited;
		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) < "-") ||
			((myValue.charAt(i) > "-") && (myValue.charAt(i) < "0")) ||
			((myValue.charAt(i) > "0") && (myValue.charAt(i) < "9")) ||
			((myValue.charAt(i) > "9") && (myValue.charAt(i) < "A")) ||
			((myValue.charAt(i) > "Z") && (myValue.charAt(i) < "_")) ||
			((myValue.charAt(i) > "_") && (myValue.charAt(i) < "a")) ||
			(myValue.charAt(i) > "z")) {
			Chk_Result = Ret_Limited;
			break;
		    }
		}
		break;

	    case myMAC :
		var MAC_RULES = /^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$/g;
		if (myValue.match(MAC_RULES)) {
		    var value1 = 0, value2 = 0, mac = myValue.split(":");
		    var is_zero = new Boolean(), is_multicast = new Boolean(), is_brodacast = new Boolean();

		    is_multicast = (parseInt(mac[0],16) & 0x01) ? true : false;
		    for (var i in mac) {
			value1 |= parseInt(mac[i], 16);
			is_zero = (value1 == 0) ? true : false;
			if (is_zero == false)
			   break;
		    }
		    for (var i in mac) {
			value2 &= parseInt(mac[i], 16);
			is_brodacast = (value2 == 0xFF) ? true : false;
			if (is_brodacast == false)
			   break;
		    }

//		    if (is_zero || is_brodacast || is_multicast)
		    if (is_zero)
			Chk_Result = Ret_Invalid;
		} else
		    Chk_Result = Ret_Invalid;
		break;

	    case myIP :
		var IP_RULES = /^((25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])$/g
		if (!myValue.match(IP_RULES))
		    Chk_Result = Ret_Invalid;
		break;

	    case myMASK :
		var MASK_RULES = /^(((255|254|252|248|240|224|192|128)\.0\.0\.0)|(255\.(255|254|252|248|240|224|192|128)\.0\.0)|(255\.255\.(255|254|252|248|240|224|192|128)\.0)|(255\.255\.255\.(255|254|252|248|240|224|192|128)))$/g
		if (!myValue.match(MASK_RULES))
		    Chk_Result = Ret_Invalid;
		break;

	    case myIPV6:
		var IPV6_RULES = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$/g;
		if (!myValue.match(IPV6_RULES))
		    Chk_Result = Ret_Invalid;
		break;

	    case mySubnet:
		if (isNaN(myValue) || (parseInt(myValue, 10) < 0) || (parseInt(myValue, 10) > 128))
			Chk_Result = Ret_Invalid;
		break;

	    case myDomain :
		for (var i = 0; i < myValue.length; i++) {
		    if (!(((myValue.charAt(i) >= "0") && (myValue.charAt(i) <= "9")) ||
			((myValue.charAt(i) >= "A") && (myValue.charAt(i) <= "Z")) ||
			((myValue.charAt(i) >= "a") && (myValue.charAt(i) <= "z")))) {
			if (!((i == 0) || (i == (myValue.length - 1)))) {
			    if ((myValue.charAt(i) == "-") || (myValue.charAt(i) == "."))
				continue;
			    else {
				Chk_Result = Ret_Limited;
				break;
			    }
			} else {
			    Chk_Result = Ret_First_Limited;
			    break;
			}
		    }
		}
		break;

	    case myURL :
		for (var i = 0; i < myValue.length; i++) {
			if (myValue.charAt(i) == "#" || myValue.charAt(i) == " " || myValue.charAt(i) == "\""){
				Chk_Result = Ret_Invalid;
				break;
			}
		}
		break;

	    case myPwd:
		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) < "!") || (myValue.charAt(i) > "~")) {
			Chk_Result = Ret_Space;
			break;
		    }
		}
		break;

	    case myStrictPwd:
		for (var i = 0; i < myValue.length; i++) {
		    if ((myValue.charAt(i) < "!") || (myValue.charAt(i) > "~")) {
			Chk_Result = Ret_Space;
			break;
		    }
		}
		if (Chk_Result == Ret_Pass) {
		    if (myValue.length < 8) {
			Chk_Result = Ret_Limited;
		    } else {
			var symbol = 0, alphabet = 0;

			for (var i = 0; i < myValue.length; i++) {
			    if (((myValue.charAt(i) >= "A") && (myValue.charAt(i) <= "Z")) ||
				((myValue.charAt(i) >= "a") && (myValue.charAt(i) <= "z")))
				alphabet++;
			    else if (((myValue.charAt(i) >= "!") && (myValue.charAt(i) <= "@")) ||
				 ((myValue.charAt(i) >= "[") && (myValue.charAt(i) <= "`")) ||
				 ((myValue.charAt(i) >= "{") && (myValue.charAt(i) <= "~")))
				symbol++;
			}
			if ((alphabet < 4) || (symbol < 1))
			    Chk_Result = Ret_Limited;
		    }
		}
		break;
	}
    }
    if (Chk_Result != Ret_Pass && Chk_Result != Ret_Empty && value_flag == 0)
	eval(myElement+ '.select()');
    return Chk_Result;
}

function auto_mask(IP, oMASK) {
    var range = 0;
    if (IP != "") {
	for (var i = 0;i < IP.length;i++) {
	    if (IP.charAt(i) == ".") {
		range = IP.substring(0, i);
		break;
	    }
	}

	if (range < 128)
	    oMASK.value = "255.0.0.0";
	else if ((range >= 128) && (range < 192))
	    oMASK.value = "255.255.0.0";
	else if ((range >= 192) && (range <= 255))
	    oMASK.value = "255.255.255.0";
    }
    return;
}

function my_conv_to_radix(value, radix)
{
    var ConvArray = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"];
    var num = parseInt(value, 10);
    var base = parseInt(radix, 10);
    var ret = 0, tmp = 0;
    var i = 0;

    if ((num < 1) || (base < 2) || (base > 16))
	ret = "0";
    else
	ret = "";

    for (i = 1; num > 0.9; i++) {
	if (i > 100) {
	    ret = null;
	    break;
	} else {
	    tmp = num;
	    ret = ConvArray[tmp % base] + ret;
	    num = Math.floor(tmp / base);
	}
    }
    return ret;
}

function my_mask_to_int(netmask)
{
    var nm  = netmask.split(".");
    var sum = 0; 

    for (var i in nm) {
	var num = parseInt(nm[i], 10);
	var pat = 0xff00;

	if (isNaN(num))
	    return null;
	else {
	    if (parseInt(nm[i], 10) == 255)
		sum += 8;
	    for (var j = 0; j < 8; j++) {
		if (parseInt(nm[i], 10) == (pat & 0xff))
		    sum += j;
		    pat = pat >> 1;
	    }
	}
    }
    return sum;
}

function my_int_to_mask(num)
{
    var sum = parseInt(num, 10);
    var nm  = "";

    if (isNaN(sum) || sum > 30 || sum < 0)
	return null;
    else {
	for (var i = 0; i < 5; i++) {
	    var pat = 0xff00;

	    if (i)
		nm += ".";
	    if (sum >= 8) {
		nm += "255";
		sum -= 8;
	    } else {
		while (sum > 0) {
		    pat = pat >> 1;
		    sum--;
		}
		nm += sum;
	    }
	}
    }
    return nm;
}

function ipinfo(ipaddr, netmask)
{
    var info = { total:0, first:"", last:"", network:"", broadcast:"" };
    var sip = ipaddr.split(".");
    var snm = netmask.split(".");

    info.total = Math.pow(2, 32 - my_mask_to_int(netmask))-2;
    for (var i = 0; i < sip.length; i++) {
	if (i) {
	    info.first += ".";
	    info.last += ".";
	    info.network += ".";
	    info.broadcast += ".";
	}
	info.network += parseInt(sip[i], 10) & parseInt(snm[i], 10);
	info.broadcast += parseInt(sip[i], 10) | (~parseInt(snm[i], 10)&0xff);
	if (i == (sip.length-1)) {
	    info.first += (parseInt(sip[i], 10) & parseInt(snm[i], 10))+1;
	    info.last += (parseInt(sip[i], 10) | (~parseInt(snm[i], 10)&0xff))-1;
	} else {
	    info.first += parseInt(sip[i], 10) & parseInt(snm[i], 10);
	    info.last += parseInt(sip[i], 10) | (~parseInt(snm[i], 10)&0xff);
	}
    }
    return info;
}

function get_eui64_ip(mac)
{
    if (mac.length) {
	var m = mac.split(':');
	var n = my_conv_to_radix(2^parseInt(m[0], 16), 16);
	var ipv6 = 'FE80:0000:0000:0000:'+((n.length < 2)?'0':'')+n+m[1]+':'+m[2]+'FF:FE'+m[3]+':'+m[4]+m[5];
	return ipv6.toUpperCase();
    }
    return '0000:0000:0000:0000:0000:0000:0000:0000';
}