function validateEmail(addr,man,db) 
{
	if (addr == '' && man) {
	   return false;
	}
	if (addr == '') return true;
	var invalidChars = '\/\'\\ ";:?!()[]\{\}^|';
	for (i=0; i<invalidChars.length; i++) {
	   if (addr.indexOf(invalidChars.charAt(i),0) > -1) {
		  if (db)
		  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;
}