function gid (id)
{
    return document.getElementById(id);
}

function isMail (mail)
{
    var regExp = new RegExp("[A-Za-z0-9_]+([-+.][A-Za-z0-9_]+)*@[A-Za-z0-9_]+([-.][A-Za-z0-9_]+)*\\.[A-Za-z0-9_]{2,}([-.][A-Za-z0-9_]+)*");
    var result = regExp.exec(mail);
    return (null == result) ? false : true;
}

function isNotEmpty (value)
{
    var regExp = new RegExp("(.)+");
    var result = regExp.exec(value);
    return (null == result) ? false : true;
}

function isCheck ()
{
    if ($('#check1').attr('checked') == true && $('#check2').attr('checked') == true) {
		return true;
	} else {
		return false;
	}
}

function validation ()
{
    var errors = '';

    if (false === isNotEmpty(gid('name').value)) {
        errors += "Please enter Name\n";
	}
	
    if (false === isMail(gid('Email_Address').value)) {
        errors += "Please enter E-mail address\n";
	}
    if ('' != errors) {
 
 	   alert(errors);
       return false;
	}

	return true;

}