function transitIp(ipaddr)//将IPV6地址补全
{
 var ipaddress = ipaddr.split("/");
 var ipaddrs = ipaddress[0].split(":");
 if(ipaddrs.length<8)
 {
 var count = 0;
 for(var i=0;i<ipaddrs.length;i++)
 {
 if(ipaddrs[i]=="")
 {
 if(count==1)
 {
  ipaddrs[i] = addZero(4);
  continue;
 }
 ipaddrs[i] = addZero((9-ipaddrs.length)*4);
 count++;
 }
 else
 {
 ipaddrs[i] += ":";
 }
 }
 }
 else if(ipaddrs.length==8)
 {
 for(var i=0;i<8;i++)
 {
 ipaddrs[i] += ":";
 }
 }
 ////上述补齐完成，将内容放置于ipaddrs中，但不标准
 return initaddr(ipaddrs);//获得了ip地址的完整字符串
}
function addZero(num)
{
 var zerostr = "";
 for(var i=1;i<num+1;i++)
 {
 zerostr+="0";
 if(i%4==0)
 {
 zerostr+=":";
 }
 }
 return zerostr;
}
function initaddr(ipaddrs)
{
 var iparray ="";
 for(var i=0;i<ipaddrs.length;i++)
 {
 iparray+=ipaddrs[i];
 }
 if(iparray.charAt(iparray.length-1)==':')
 {
 iparray = iparray.substr(0,iparray.length-1);
 }
 //var iparrays = iparray.split(":");
 //return iparrays;
 return iparray;
}

function isIPv6(str)//IPV6地址判断 
{ 
 return /:/.test(str) 
 &&str.match(/:/g).length<8
 &&/::/.test(str)
 ?(str.match(/::/g).length==1
 &&/^::$|^(::)?([\da-f]{1,4}(:|::))*[\da-f]{1,4}(:|::)?$/i.test(str))
 :/^([\da-f]{1,4}:){7}[\da-f]{1,4}$/i.test(str);
}

function four2six(fouraddr,fourmask)//IPV4转IPV6，包括地址和掩码
{
 var reg = fouraddr.match(/^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/);
 if(reg==null)
 {
 alert("IP地址不正确!");
 return;
 }
 if(fourmask.indexOf(".")!=-1)
 {
 reg = fourmask.match(/^(254|252|248|240|224|192|128|0)\.0\.0\.0$|^(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\.(255|254|252|248|240|224|192|128|0))$/);
 if(reg==null)
 {
 alert("子网掩码不正确!");
 return;
 }
 }
 else
 {
 var mask = parseInt(fourmask, 10);
 if(mask<0 || mask > 32)
 {
 alert("子网掩码不正确!");
 return;
 }
 }
 /***
 IPV4转IPV6的方法很简单
 1、先将其每段转为16进制
 2、不足两位的前面添加0
 3、V4一共会产生4个16进制数字，比前两个和后两个分别组合
 4、地址前面加上"0000:0000:0000:0000:0000:ffff:"即可
 **/
 var sixtemp = "";
 var fouraddrs = fouraddr.split(".");
 for (var i=0; i<fouraddrs.length; i++)
 {
 var addr4ip = parseInt(fouraddrs[i], 10);
 var addrtemp = addr4ip.toString(16);
 if(addrtemp.length==1)
 {
 addrtemp = "0" + addrtemp;
 }
 sixtemp += addrtemp;
 if(i==1)
 {
 sixtemp += ":";
 }
 }
 //以上产生V6地址段正确
 sixtemp = "0000:0000:0000:0000:0000:ffff:" + sixtemp;
 /***
 下面处理子网掩码，子网掩码可以有两种写法,数字或者255.255.255.0写法
 1、第一种处理比较简单，只需此数值加96（128-32）即可
 2、第二种需要分为四段，每段转为2进制，看哪一位最开始变为0
 **/
 var masktemp = 96;
 if(fourmask.indexOf(".")==-1)
 {
 masktemp += parseInt(fourmask);
 }
 else
 {
 var masks = fourmask.split(".");
 for ( var i=0; i<masks.length; i++)
 {
 var mask4ip = parseInt(masks[i], 10);
 var mask4temp = mask4ip.toString(2);
 if(mask4temp.length!=8)
 {
 for(var j=0;j<8-mask4temp;j++)
 {
  mask4temp = "0"+mask4temp;
 }
 }
 //下面判断位置
 var flagtemp = false;
 for(var j=0;j<8;j++)
 {
 if(mask4temp.charAt(j)=='0')
 {
  flagtemp = true;
  masktemp += i*8 + j;
  break;
 }
 if(j==7&&i==3)
 {
  flagtemp = true;
  masktemp = 128;
  break;
 }
 }
 if(flagtemp)
 {
 break;
 }
 }
 }
 return sixtemp + "/" + masktemp;
}
function four2sixip(fouraddr)//IPV4转IPV6，只转地址
{
 var reg = fouraddr.match(/^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/);
 if(reg==null)
 {
 alert("IP地址不正确!");
 return;
 }
 var sixtemp = "";
 var fouraddrs = fouraddr.split(".");
 for (var i=0; i<fouraddrs.length; i++)
 {
 var addr4ip = parseInt(fouraddrs[i], 10);
 var addrtemp = addr4ip.toString(16);
 if(addrtemp.length==1)
 {
 addrtemp = "0" + addrtemp;
 }
 sixtemp += addrtemp;
 if(i==1)
 {
 sixtemp += ":";
 }
 }
 //以上产生V6地址段正确
 sixtemp = "0000:0000:0000:0000:0000:ffff:" + sixtemp;
 return sixtemp;
}