<!--
function CheckEmail(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 is invalid!");
    return false;
  }

var user=matchArray[1];
var domain=matchArray[2];

  for (i=0; i<user.length; i++) {
    if (user.charCodeAt(i)>127) {
    alert("Email Address is invalid!");
      return false;
    }
  }
  for (i=0; i<domain.length; i++) {
    if (domain.charCodeAt(i)>127) {
    alert("Email Address is invalid!");
      return false;
    }
  }

  if (user.match(userPat)==null) {
    alert("Email Address is invalid!");
    return false;
  }

var IPArray=domain.match(ipDomainPat);

  if (IPArray!=null) {
    for (var i=1;i<=4;i++) {
      if (IPArray[i]>255) {
    alert("Email Address 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("Email Address is invalid!");
      return false;
    }
  }

  if (checkTLD && domArr[domArr.length-1].length!=2 &&
     domArr[domArr.length-1].search(knownDomsPat)==-1) {
    alert("Email Address is invalid!");
    return false;
  }

  if (len<2) {
    alert("Email Address is invalid!");
    return false;
  }

  return true;
}


//-->