function validate_signup(frm) {
	var emailAddress = frm.Email.value;
	var errorString = '';
	if (emailAddress == '' || emailAddress.indexOf('@') == -1) {
		errorString = 'Please enter your email address';
	}

    
var els = frm.getElementsByTagName('input');
for (var i = 0; i < els.length; i++)
{
    if (els[i].className == 'text' || els[i].className == 'date' || els[i].className == 'number') 
    {
        if (els[i].value == '')
            errorString = 'Please complete all required fields.';
    }
    else if (els[i].className == 'radio')
    {
        var toCheck = document.getElementsByName(els[i].name);
        var radioChecked = false;
        for (var j = 0; j < toCheck.length; j++)
        {
            if (toCheck[j].name == els[i].name && toCheck[j].checked)
                radioChecked = true;
        }
        if (!radioChecked)
            errorString = 'Please complete all required fields.';
    }
}



	var isError = false;
    if (errorString.length > 0)
        isError = true;

    if (isError)
        alert(errorString);
	return !isError;
}