function isEmail(elm)
        {
        if (elm.value.indexOf("@") + "" != "-1" &&
                elm.value.indexOf(".") + "" != "-1" &&
                elm.value != "")
        return true;
        else return false;
        }

function isFilled(elm) {
        if (elm.value == "" ||
                elm.value == null)
        return false;
        else return true;
        }

function isReady(form) {

    if (isFilled(form.realname) == false) {
        alert("Please enter a name.");  
        form.realname.focus();
        return false;
        }

    if (isEmail(form.email) == false) {
                alert("Please enter your correct email address.");
                form.email.focus();
                return false;
                }


}
// end validation