//email validation
function validate() {

    var reEmail = new RegExp("^([^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+|\"([^\\\\\"\\x0D]|\\\\.)*\")(\\.([^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+|\"([^\\\\\"\\x0D]|\\\\.)*\"))*@[^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+(\\.[^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+)*\\.[^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]{2,4}$");

    if(reEmail.test(document.emailForm.vemail.value)) {
        return true;
    } else {
        alert("Please provide a valid e-mail address");
        return false;
    }
}

function validate_manual() {

    var reEmail = new RegExp("^([^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+|\"([^\\\\\"\\x0D]|\\\\.)*\")(\\.([^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+|\"([^\\\\\"\\x0D]|\\\\.)*\"))*@[^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+(\\.[^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]+)*\\.[^()<>@,;:\\\\\".\\s\\x00-\\x1F\\x7F\\[\\]]{2,4}$");

    if(reEmail.test(document.manual_form.vemail.value)) {
        return true;
    } else {
        alert("Please provide a valid e-mail address");
        return false;
    }
}