function getEmail(user, name) { document.write('<a href=\"mailto:' + unescape(user) + '\">' + name + '</a>'); }

function valCustomPhone(oSrc, args) {
    var txtPhone = document.getElementById('ctl00_Main_txtPhone');    
    var txtEmail = document.getElementById('ctl00_Main_txtEmail');    
    args.IsValid = (txtPhone.value != "" || txtEmail.value != "" );
}