function verifyEmail(email)
{
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if(reg.test(email) == false) 
	{
		alert('Please enter a valid e-mail address');
		return false;
	}
	return true;
}