function CheckEmailAddress(emailStr)
{
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var firstChars=validChars
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom="(" + firstChars + validChars + "*" + ")"
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)

	if (matchArray==null)
	{
		/* Too many/few @'s or something */
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null)
	{
	    // user is not valid...
	    return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null)
	{
	    // this is an IP address...
		for (var i=1;i<=4;i++)
		{
			if (IPArray[i]>255)
			{
				return false
			}
		}
	    return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null)
	{
	    return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
	    domArr[domArr.length-1].length>3)
	{
		// the address must end in a two letter or three letter word.
		//alert("the address must end in a two letter or three letter word.")
		return false
	}

	if (domArr[domArr.length-1].length==2 && len<3)
	{
		//var errStr="This address ends in two characters, which is a country"
		//alert("This address ends in two characters, which is a country")
		//return false
	}

	if (domArr[domArr.length-1].length==3 && len<2)
	{
		//alert("The address ends in 3 characters BUT the number of bits is only 1.")
		return false
	}

	// Everything's valid...
	return true
}