var subnet_mask = new Array(0, 128, 192, 224, 240, 248, 252, 254, 255);
var msg = new Array("The IP address is an invalid address.",
					"The IP address can not be zero.",
					"IP address",
					"The Subnet Mask address is an invalid address.",
					"The Subnet Mask address can not be zero.",
					"Subnet Mask address",
					"The ISP Gateway address is an invalid address.",
					"The ISP Gateway address can not be zero.",
					"ISP Gateway address",
					"The IP address and the ISP Gateway address are not in the same domain.",
					"The Starting IP address is invalid.(IP Range: 1~254)",
					"Please enter another Starting IP address.",
					"Start IP address",
					"The Lan IP address and the Start IP address are not in the same domain.",
					"The Ending IP address is invalid.(IP Range: 1~254)",
					"Please enter another Ending IP address.",
					"End IP address",
					"The Lan IP address and the End IP address are not in the same domain.",
					"The Primary DNS address is an invalid address.",
					"The Primary DNS address can not be zero.",
					"Primary DNS address",
					"SSID can not be empty.",					
					"The Encryption can not be disabled when the Authentication Type is in the Shared Key mode.",
					"The length of PSK Key must be at least 8 characters.",
					"The Confirmed Passphrase does not match the Passphrase.",
					"The Retype password does not match the password.",
					"The selected Key can not be empty.",
					"Please enter another Key.",
					"Quit setup wizard and discard settings?",
					"The legal characters of MAC must be 0~9, A~F, or a~f.",																				
					"The Ending IP address must be greater than the Starting IP address.",
					"The Secondary DNS address is an invalid address.",
					"The Secondary DNS address can not be zero.",
					"Secondary DNS address",
					"The confirm password does not match the new password in the Administrator section.",
					"The confirm password does not match the new password in the User section.",
					"Please enter another Server Name.",
					"Please enter another Host Name",
					"Please enter another User Name",
					"Please enter another Password",
					"Restore To Factory Default Settings?",
					"Are you sure to reboot the router?",
					"Load Settings from file?",
					"Please select a file to upload.",
					"Only admin account can download the settings.",
					"Please enter either a host name or an ip address.",
					"Please enter another SMTP Server or IP address",
					"Please enter another email address.",
					"Are you sure that you want to delete this server?",
					"Are you sure that you want to delete this application?",
					"Are you sure that you want to delete this filter?",
					"Are you sure that you want to delete this routing?",
					"Are you sure that you want to delete this MAC address?",
					"Are you sure that you want to delete this keyword?",
					"Are you sure that you want to delete this domain?",
					"Are you sure that you want to delete this entry?",
					"Are you sure that you want to delete this Static DHCP address?",
					"Please enter another name.",
					"Please enter another trigger port number.",
					"Please enter another public port number.",
					"Please enter another private port number.",
					"Please enter a private IP address.",
					"Please enter another port number.",
					"Please select a keyword to delete.",
					"This keyword is already existing in the list of Keyword table.",
					"Please enter another keyword.",
					"Unable to add more keyword.",
					"Please select a blocked domain to delete.",
					"Please select a permitted domain to delete.",
					"This domain is already existing in the list of Blocked Domain.",
					"Please enter another blocked domain.",
					"Unable to add more blocked domain.",
					"This domain is already existing in the list of Permitted Domain.",
					"Please enter another permitted domain.",
					"Unable to add more permitted domain.",
					"Please choose a firmware to upgrade.",
					"Please enter another domain.",
					"Unable to add more control domains.",
					"Please select a Control Domain to delete.",
					"Please enter at least one control domain.",
					"The Radius Server 1 IP address is an invalid address.",
					"The Radius Server 1 IP address can not be zero.",
					"Radius Server 1 IP address",
					"The Radius Server 2 IP address is an invalid address.",
					"The Radius Server 2 IP address can not be zero.",
					"Radius Server 2 IP address",
					"The Static DHCP IP address is invalid.(IP Range: 1~254)",
					"Please enter another Static DHCP IP address.",
					"Please enter another Static DHCP name.",
					"The Server IP address is an invalid address.",
					"The Server IP address can not be zero.",
					"Server IP address",
					"The Verify password does not match the password.",
					"The Source Start IP address is an invalid address.",
					"The Source Start IP address can not be zero.",
					"Source Start IP address",
					"The Source End IP address is an invalid address.",
					"The Source End IP address can not be zero.",
					"Source End IP address",
					"The Destination Start IP address is an invalid address.",
					"The Destination Start IP address can not be zero.",
					"Destination Start IP address",
					"The Destination End IP address is an invalid address.",
					"The Destination End IP address can not be zero.",
					"Destination End IP address",
					"The length of Passphrase is over 63 characters.",
					"Reset JumpStart?");
var INVALID_IP_ADDRESS = 0;
var ZERO_IP_ADDRESS = 1;
var IP_ADDRESS_DESC = 2;
var INVALID_MASK_ADDRESS = 3;
var ZERO_MASK_ADDRESS = 4;
var MASK_ADDRESS_DESC = 5;
var INVALID_GATEWAY_ADDRESS = 6;
var ZERO_GATEWAY_ADDRESS = 7;
var GATEWAY_ADDRESS_DESC = 8;
var NOT_SAME_DOMAIN = 9;
var INVALID_START_IP = 10;
var ZERO_START_IP = 11;
var START_IP_DESC = 12;
var START_INVALID_DOMAIN = 13;
var INVALID_END_IP = 14;
var ZERO_END_IP = 15;
var END_IP_DESC = 16;
var END_INVALID_DOMAIN = 17;
var INVALID_DNS_ADDRESS = 18;
var ZERO_DNS_ADDRESS = 19;
var DNS_ADDRESS_DESC = 20;
var SSID_EMPTY_ERROR = 21;
var AUTH_TYPE_ERROR = 22;
var PSK_LENGTH_ERROR = 23;
var PSK_MATCH_ERROR = 24;
var MATCH_PWD_ERROR = 25;
var WEP_KEY_EMPTY = 26;
var WIZARD_KEY_EMPTY = 27;
var QUIT_WIZARD = 28;
var MAC_ADDRESS_ERROR = 29;
var IP_RANGE_ERROR = 30;
var INVALID_SEC_DNS_ADDRESS = 31;
var ZERO_SEC_DNS_ADDRESS = 32;
var SEC_DNS_ADDRESS_DESC = 33;
var ADMIN_PASS_ERROR = 34;
var USER_PASS_ERROR = 35;
var DDNS_SERVER_ERROR = 36;
var DDNS_HOST_ERROR = 37;
var DDNS_USER_ERROR = 38;
var DDNS_PASS_ERROR = 39;
var RESTORE_DEFAULT = 40;
var REBOOT_ROUTER = 41;
var LOAD_SETTING = 42;
var LOAD_FILE_ERROR = 43;
var DOWNLOAD_SETTING_ERROR = 44;
var PING_IP_ERROR = 45;
var SMTP_SERVER_ERROR = 46;
var EMAIL_ADDRESS_ERROR = 47;
var DEL_SERVER_MSG = 48;
var DEL_APPLICATION_MSG = 49;
var DEL_FILTER_MSG = 50;
var DEL_ROUTE_MSG = 51;
var DEL_MAC_MSG = 52;
var DEL_KEYWORD_MSG = 53;
var DEL_DOMAIN_MSG = 54;
var DEL_ENTRY_MSG = 55;
var DEL_STATIC_DHCP_MSG = 56;
var NAME_ERROR = 57;
var TRIGGER_PORT_ERROR = 58;
var PUBLIC_PORT_ERROR = 59;
var PRIVATE_PORT_ERROR = 60;
var PRIVATE_IP_ERROR = 61;
var PORT_ERROR = 62;
var DEL_KEYWORD_ERROR = 63;
var SAME_KEYWORD_ERROR = 64;
var KEYWORD_ERROR = 65;
var ADD_KEYWORD_ERROR = 66;
var DEL_BLOCK_DOMAIN_ERROR = 67;
var DEL_PERMIT_DOMAIN_ERROR = 68;
var SAME_BLOCK_DOMAIN = 69;
var BLOCK_DOMAIN_ERROR = 70;
var ADD_BLOCK_DOMAIN_ERROR = 71;
var SAME_PERMIT_DOMAIN = 72;
var PERMIT_DOMAIN_ERROR = 73;
var ADD_PERMIT_DOMAIN_ERROR = 74;
var FIRMWARE_UPGRADE_ERROR = 75;
var DOMAIN_ERROR = 76;
var ADD_CONTROL_DOMAIN_ERROR = 77;
var DEL_CONTROL_DOMAIN_ERROR = 78;
var CONTROL_DOMAIN_ERROR = 79;
var INVALID_RADIUS_SERVER1_IP = 80;
var ZERO_RADIUS_SERVER1_IP = 81;
var RADIUS_SERVER1_IP_DESC = 82;
var INVALID_RADIUS_SERVER2_IP = 83;
var ZERO_RADIUS_SERVER2_IP = 84;
var RADIUS_SERVER2_IP_DESC = 85;
var INVALID_STATIC_DHCP_IP = 86;
var ZERO_STATIC_DHCP_IP = 87;
var STATIC_DHCP_NAME = 88;
var INVALID_SERVER_IP = 89;
var ZERO_SERVER_IP = 90;
var SERVER_IP_DESC = 91;
var MATCH_WIZARD_PWD_ERROR = 92;
var INVALID_SOURCE_START_IP = 93;
var ZERO_SOURCE_START_IP = 94;
var SOURCE_START_IP_DESC = 95;
var INVALID_SOURCE_END_IP = 96;
var ZERO_SOURCE_END_IP = 97;
var SOURCE_END_IP_DESC = 98;
var INVALID_DEST_START_IP = 99;
var ZERO_DEST_START_IP = 100;
var DEST_START_IP_DESC = 101;
var INVALID_DEST_END_IP = 102;
var ZERO_DEST_END_IP = 103;
var DEST_END_IP_DESC = 104;
var PSK_OVER_LEN = 105;
var RESET_JUMPSTAR = 106;

function addr_obj(addr, desc, allow_zero, e_msg1, e_msg2, e_msg3, is_mask){	
	this.addr = addr;
	this.desc = msg[desc];
	this.allow_zero = allow_zero;	
	this.e_msg1 = msg[e_msg1];
	this.e_msg2 = msg[e_msg2];	
	
	if (e_msg3 != -1){
		this.e_msg3 = msg[e_msg3];	
	}
	this.is_mask = is_mask;	
}

function varible_obj(var_value, desc, min, max, is_even){	
	this.var_value = var_value;
	this.desc = desc;
	this.min = min;
	this.max = max;		
	this.is_even = is_even;		
}

function raidus_obj(ip, port, secret, number){	
	this.ip = ip;
	this.port = port;
	this.secret = secret;
	this.number = number;		
}

function ip4_obj(ip, min_range, max_range, e_msg1, e_msg2){	
	this.ip = ip;	
	this.min_range = min_range;
	this.max_range = max_range;		
	this.e_msg1 = msg[e_msg1];
	this.e_msg2 = msg[e_msg2];	
}

function change_filter(which_filter){
 var html_file;
 
 switch(which_filter){
		case 0 :
	html_file = "adv_filters.html";
	break;
		case 1 :
	html_file = "adv_filters_mac.html";
	break;	
		case 2 :
	html_file = "adv_filters_url.html";
	break;
		case 3 :
	html_file = "adv_filters_domain.html";
	break;
	}
	
	location.href = html_file;
}

function change_routing(which_routing){
 var html_file;
 
 switch(which_routing){
 case 0 :
 html_file = "adv_routing.html";
 break;
 case 1 :
 html_file = "adv_routing_dynamic.html";
 break;
 case 2 :
 html_file = "adv_routing_table.html";
 break;
 }
 
 location.href = html_file;
}

function change_wan(which_wan){
 var html_file;
 
 switch(which_wan){
		case 0 :
	html_file = "h_wan_dhcp.html";
	break;
		case 1 :
	html_file = "h_wan_fix.html";
	break;	
		case 2 :
	html_file = "h_wan_poe.html";
	break;
		case 3 :
	html_file = "h_wan_pptp.html";
	break;
 case 4 :
	html_file = "h_wan_bigpond.html";
	break;
 case 5 :
	html_file = "h_wan_l2tp.html";
	break;
	}
	
	location.href = html_file;
}

function check_hex(data){	
	data = data.toUpperCase();
	
	if (!(data >= 'A' && data <= 'F') && !(data >= '0' && data <= '9')){	
		return false;
	}	
	return true;
}

function check_ip4(ip4){
	var temp_ip = (ip4.ip).split(" ");
	
	if (ip4.ip == ""){
		alert(ip4.e_msg1);
		return false;
	}else if (isNaN(ip4.ip) || temp_ip.length > 1 || parseInt(ip4.ip) < ip4.min_range || parseInt(ip4.ip) > ip4.max_range){
		alert(ip4.e_msg2);
		return false;
	}
	return true;
}

function check_key(){	
	var length = get_length();
	var wep_type = get_by_id("wep_type");
	var wep_def_key = get_by_name("wep_def_key");
	var wep_key_type = get_by_id("wep_key_type");
	if (wep_type.selectedIndex == 1 ){		
	for (var i = 1; i < 5; i++){					
	 var key = get_by_id("key" + i).value;
	 
	 if (wep_def_key[i-1].checked){
	 if (key == ''){
 alert(msg[WEP_KEY_EMPTY]);
		 return false;
 }
	 }
 if (key != ''){
 if (key.length < length){
 alert("The length of Key" + i + " must be " + length + " characters.");
 return false;
 }else{
	if (wep_key_type.value == "0"){	// check the key is hex or not
		for (var j = 0; j < key.length; j++){
			if (!check_hex(key.substring(j, j+1))){
				alert("Key" + i + " is wrong, the legal characters are 0~9, A~F, or a~f.");
				return false;
			}
		}
	 }
 }
 } 
	}	
	}
	return true;
}

function check_mac(mac){
 var temp_mac = mac.split("-");
 var error = true;
 
 if (temp_mac.length == 6){
 for (var i = 0; i < 6; i++){ 
 var temp_str = temp_mac[i];
 
 if (temp_str == ""){
 error = false;
 }else{	
 if (!check_hex(temp_str.substring(0,1)) || !check_hex(temp_str.substring(1))){
 error = false;
 }
 }
 
 if (!error){
 break;
 }
 }
	}else{
		error = false;
	}
 return error;
}

function check_varible(obj){	
	var temp_obj = (obj.var_value).split(" ");
	
	if (temp_obj == ""){
		alert(obj.desc + " can not be empty.");	
		return false;
	}else if (temp_obj.length > 1){
		alert("Please enter another " + obj.desc + " value.");
		return false;
	}else if (isNaN(obj.var_value)){
		alert(obj.desc + " must be an integer.");
		return false;
	}else if (parseInt(obj.var_value) < obj.min || parseInt(obj.var_value) > obj.max){
		alert("The range of " + obj.desc + " is " + obj.min + " ~ " + obj.max + ".");
		return false;
	}else if (obj.is_even && (parseInt(obj.var_value) % 2 != 0)){
		alert(obj.desc + " is even number only.");
		return false;
	}
	return true;
}

function get_seq(index){
	var seq;
	
	switch(index){
		case 0:
			seq = "1st";
			break;
		case 1:
			seq = "2nd";
			break;
		case 2:
			seq = "3rd";
			break;
		case 3:
			seq = "4th";
			break;
	}
	return seq;
}

function check_ip_range(order, my_obj){
	var which_ip = (my_obj.addr[order]).split(" ");				
	var start, end;
	
	if ((order != 0 && order != 3) || my_obj.is_mask){
		start = 0;
		end = 255;
	}else{					
		start = 1;
		end = 254;				
	}
					
	if (isNaN(which_ip) || which_ip == "" || which_ip.length > 1){
		alert("The " + get_seq(order) + " address of " + my_obj.desc + " must be an integer.");
		return false;
	}else if (parseInt(which_ip) < start || parseInt(which_ip) > end){
		alert("The " + get_seq(order) + " range of " + my_obj.desc + " must be between " + start + " to " + end + ".");
		return false;
	}				
	return true;
}

function is_valid_ip(my_obj){
	var count_zero = 0;
	var ip = my_obj.addr;
	
	for(var i = 0; i < ip.length; i++){
		if (ip[i] == "0"){
			count_zero++;
		}								
	}
	
	if (!my_obj.allow_zero && count_zero == 4){
		alert(my_obj.e_msg2);
		return false;
	}else{
		if (count_zero != 4){
			for(var i = 0; i < ip.length; i++){
				if (!check_ip_range(i, my_obj)){
					return false;
				}							
			}
		}
	}
	return true;				
}

function check_address(my_obj){					
	if (my_obj.addr.length == 4){										
		if (!is_valid_ip(my_obj)){					
			return false;
		}else{
			return true;
		}
	}else{
		alert(my_obj.e_msg1);
		return false;
	}				
}

function check_mask(my_mask){
	var temp_mask = my_mask.addr;							
	var in_range = false;
	var error;
	
	for (var i = 0; i < temp_mask.length; i++){	
		var mask = parseInt(temp_mask[i]);
						
		for (var j = 0; j < subnet_mask.length; j++){
			if (mask == subnet_mask[j]){							
				in_range = true;
				break;
			}else{
				in_range = false;
			}
		}
		
		if (!in_range){	// when not in the subnet mask range
			error = "The " + get_seq(i) + " range of " 
				+ my_mask.desc + " must be ";
			for (var j = 0; j < subnet_mask.length; j++){
				error += subnet_mask[j];
				if (j < subnet_mask.length - 1){
					error += ", ";
				}
			}
			alert(error);
			return false;
		}
		
		if (i != 0 && mask != 0){ // when not the 1st range and the value is not 0
			if (parseInt(temp_mask[i-1]) != 255){ // check the previous value is 255 or not
				alert(my_mask.e_msg1);
				return false;
			}
		}					
	}
	return true;
}

function check_domain(ip, mask, gateway){
	var temp_ip = ip.addr;
	var temp_mask = mask.addr;
	var temp_gateway = gateway.addr;
	var is_same = true;
	
	if (temp_gateway[0] == 0 && temp_gateway[1] == 0 && temp_gateway[2] == 0
			&& temp_gateway[3] == 0){
		if (gateway.allow_zero){
			return is_same;
		}
	}
		
	for (var i = 0; i < temp_ip.length - 1; i++){
		if ((temp_ip[i] & temp_mask[i]) != (temp_gateway[i] & temp_mask[i])){
			alert(gateway.e_msg3);
			is_same = false;		// when not in the same subnet mask, return false
			break;
		}
	}

	return is_same;
}

function check_lan_setting(ip, mask, gateway){				
	var temp_ip_obj = new addr_obj(ip.split("."), IP_ADDRESS_DESC, false, INVALID_IP_ADDRESS, ZERO_IP_ADDRESS, -1, false);
	var temp_mask_obj = new addr_obj(mask.split("."), MASK_ADDRESS_DESC, false, INVALID_MASK_ADDRESS, ZERO_MASK_ADDRESS, -1, true);
	var temp_gateway_obj = new addr_obj(gateway.split("."), GATEWAY_ADDRESS_DESC, true, INVALID_GATEWAY_ADDRESS, ZERO_GATEWAY_ADDRESS, NOT_SAME_DOMAIN, false);
		
	if (!check_address(temp_ip_obj)){
		return false;		// when ip is invalid
	}else if (!check_address(temp_mask_obj)){
		return false;	// when subnet mask is invalid
	}else if (!check_mask(temp_mask_obj)){
		return false; // when subnet mask is not in the subnet mask range
	}else if (!check_address(temp_gateway_obj)){
		return false;	// when gateway is invalid
	}else if (!check_domain(temp_ip_obj, temp_mask_obj, temp_gateway_obj)){		// check if the ip and the gateway are in the same subnet mask or not					
		return false;
	}
	return true;
}

function check_pwd(pwd1, pwd2){
	if (get_by_id(pwd1).value != get_by_id(pwd2).value){
	 alert(msg[MATCH_PWD_ERROR]);
	 return false;
	}
	return true;
}

function check_radius(radius){
	
	if (!check_address(radius.ip)){
		return false;
	}else if (!check_port(radius.port)){
 alert("The port of Radius Server " + radius.number + " is invalid.");
 return false;
 }else if (radius.secret == ""){
 alert("The Shared Secret of Radius Server " + radius.number + " can not be empty.");
 return false; 
	}
	
	return true;
}

function check_ssid(id){
	if (get_by_id(id).value == ""){
 alert(msg[SSID_EMPTY_ERROR]);
 return false;
	}
	return true; 
}

function check_port(port){
 var temp_port = port.split(" ");
 
 if (isNaN(port) || port == "" || temp_port.length > 1 
		|| (parseInt(port) < 1 || parseInt(port) > 65534)){
 return false;
 }
 return true;
}

function change_color(table_name, row){
 var obj = get_by_id(table_name);
 for (var i = 1; i < obj.rows.length; i++){
 if (row == i){
 obj.rows[i].style.backgroundColor = "#FFFF00";
 }else{
 obj.rows[i].style.backgroundColor = "#FFFFFF";
 }
 } 
}

function exit_wizard(){
 if (confirm(msg[QUIT_WIZARD])){
 window.close();
 }
}

function forward_page(which_page){
 var html_file;
 
 switch(which_page){
		case 0 :
	html_file = "h_wan.html";
	break;
		case 1	:
	html_file = "h_wan_fix.html";
	break;
		case 2	:
	html_file = "h_wan_poe.html";
	break;
	}
	
	location.href = html_file;
}

function get_by_id(id){
	with(document){
		return getElementById(id);
	}
}

function get_by_name(name){
	with(document){
		return getElementsByName(name);
	}
}

function get_length(){
 var wep_key_len = get_by_id("wep_key_len");
 var wep_key_type = get_by_id("wep_key_type"); 
	var length = parseInt(wep_key_len.value);
		
	if (wep_key_type.value == "0"){
 length *= 2;
	}
	return length;
}

function openwin(url,w,h) {
	var winleft = (screen.width - w) / 2;
	var wintop = (screen.height - h) / 2;
	window.open(url,"popup",'width='+w+',height='+h+',top='+wintop+',left='+winleft+',scrollbars=yes,status=no,location=no,resizable=yes')
}	

function send_submit(which_form){
	get_by_id(which_form).submit();
}

function set_server(is_enable){
	var enable = get_by_name("enable");
	
 if (is_enable == "1"){
 enable[0].checked = true;
 }else{
 enable[1].checked = true;
 }
}

function set_protocol(which_value, obj){
 for (var i = 0; i < 3; i++){
 if (which_value == obj.options[i].value){
 obj.selectedIndex = i;
 break;
 }
 }
}

function set_schedule(data, index){ 
	var schd = get_by_name("schd"); 
	
 if (data[index] == "0"){
 schd[0].checked = true; 
 }else{
 schd[1].checked = true; 
 }
 
 get_by_id("hour1").selectedIndex = data[index+1];
 get_by_id("min1").selectedIndex = data[index+2];
 get_by_id("am1").selectedIndex = data[index+3];
 get_by_id("hour2").selectedIndex = data[index+4];
 get_by_id("min2").selectedIndex = data[index+5];
 get_by_id("am2").selectedIndex = data[index+6];
 get_by_id("day1").selectedIndex = data[index+7];
 get_by_id("day2").selectedIndex = data[index+8];
}

function set_mac(mac){
	var temp_mac = mac.split("-");
	for (var i = 0; i < 6; i++){
		var obj = get_by_id("mac" + (i+1));
		obj.value = temp_mac[i];
	}
}

function show_dns(type){
 if (type){
 get_by_id("dns1").value = "0.0.0.0";
 get_by_id("dns2").value = "0.0.0.0";
 }
}

function show_wizard(name){
	window.open(name,"Wizard","width=450,height=370");
}

function show_window(name){
	window.open(name,"Window","width=500,height=600,scrollbar=yes");
}