function validateEmail(addr) {
if (addr == '') { alert('Email ID cannot be empty'); return false; }
var invalidChars = '\/\'\\ ";:?!()[]\{\}^|';
for (i=0; i<invalidChars.length; i++) {
   if (addr.indexOf(invalidChars.charAt(i),0) > -1) { return false; } }
for (i=0; i<addr.length; i++) {
   if (addr.charCodeAt(i)>127) { return false; } }
var atPos = addr.indexOf('@',0);
if (atPos == -1) { return false; }
if (atPos == 0) { return false; }
if (addr.indexOf('@', atPos + 1) > - 1) { return false; }
if (addr.indexOf('.', atPos) == -1) { return false; }
if (addr.indexOf('@.',0) != -1) { return false; }
if (addr.indexOf('.@',0) != -1){ return false; }
if (addr.indexOf('..',0) != -1) { return false; }
var suffix = addr.substring(addr.lastIndexOf('.')+1);
if (suffix.length != 2 && suffix != 'com' && suffix != 'net' && suffix != 'org' && suffix != 'edu' && suffix != 'int' && suffix != 'mil' && suffix != 'gov' & suffix != 'arpa' && suffix != 'biz' && suffix != 'aero' && suffix != 'name' && suffix != 'coop' && suffix != 'info' && suffix != 'pro' && suffix != 'museum') {
   return false;
}
return true;
}