// JavaScript Document

function MailCheck( AAddress )
{
var checkTLD     = 1;
var knownDomsPat = /^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum|local)$/;
var emailPat     = /^(.+)@(.+)$/;
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   = AAddress.match( emailPat );


	if( matchArray == null )
		return false;


var user   = matchArray[1];
var domain = matchArray[2];

	for( i=0; i<user.length; i++ )
	{
		if( user.charCodeAt(i) > 127 )
			return false;
	}

	for( i=0; i<domain.length; i++ )
	{
		if( domain.charCodeAt(i) > 127 )
			return false;
    }

	if( user.match(userPat) == null )		
		return false;


var IPArray = domain.match( ipDomainPat );
	
	if( IPArray != null )
	{
		for( var i=1; i<=4; i++ )
		{
			if( IPArray[i] > 255 )
				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 ) 
			return false;
	}

	if( checkTLD && domArr[domArr.length-1].length != 2
		&& domArr[domArr.length-1].search(knownDomsPat) == -1 )
			return false;

	if( len < 2 )
		return false;

	return true;
}