<!-- 
 function emailCheck(emailStr)
 {

          var checkTLD = 1;
          var knownDomsPat = /^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
          var emailPat = /^(.+)@(.+)$/;
          var specialChars = "\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
          var validChars = "\[^\\s" + specialChars + "\]";
          var quotedUser = "(\"[^\"]*\")";
          var ipDomainPat = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
          var atom = validChars + '+';
          var word = "(" + atom + "|" + quotedUser + ")";
          var userPat = new RegExp("^" + word + "(\\." + word + ")*$");
          var domainPat = new RegExp("^" + atom + "(\\." + atom +")*$");
          var matchArray = emailStr.match(emailPat);

          if (matchArray == null)
          {
              //alert("Email address seems incorrect (check @ and .'s)");
              return false;
          }

          var user = matchArray[1];
          var domain = matchArray[2];

          for (i = 0; i < user.length; i++)
          {
               if (user.charCodeAt(i) > 127)
               {
                   //alert("Ths username contains invalid characters.");
                   return false;
               }
          }

          for (i = 0; i < domain.length; i++)
          {
               if (domain.charCodeAt(i) > 127)
               {
                   //alert("Ths domain name contains invalid characters.");
                   return false;
               }
          }

          if (user.match(userPat) == null)
          {
              //alert("The username doesn't seem to be valid.");
              return false;
          }

          var IPArray = domain.match(ipDomainPat);

          if (IPArray != null)
          {
              for (var i = 1 ; i <=4 ; i++)
              {
                   if (IPArray[i] > 255)
                   {
                       //alert("Destination IP addre????î?????ŸG??ŸG?ss is invalid!");
                       return false;
       }
              }

              return true;
          }

          var atomPat = new RegExp("^" + atom + "$");
          var domArr = domain.split(".");
          var len = domArr.length;

          for (i = 0 ; i < len ; i++)
          {
               if (domArr[i].search(atomPat) == -1)
               {
                   //alert("The domain name does not seem to be valid.");
                   return false;
               }
          }

          if (checkTLD && domArr[domArr.length-1].length != 2 && domArr[domArr.length-1].search(knownDomsPat) == -1)
          {
              //alert("The address must end in a well-known domain or two letter " + "country.");
              return false;
          }


          if (len < 2)
          {
              //alert("This address is missing a hostname!");
              return false;
          }

          return true;

 } /* emailCheck */


// -->