function setvalue(i) {
    var objI = document.getElementById('i' + i);
    if (objI.checked) {
        objI.value = i;
        objI.name = 'registration_position';
    } else {
        objI.value = '';
        objI.name = '';
    }
}

function trySubmit(Sender) {
    var sMessage = '';
    var required;
    var uiname = '';
    var fldvalue = '';
    for (var i = 0; i < Sender.elements.length; i++) {
        required = Sender.elements(i).required;
        uiname = Sender.elements(i).uiname;
        fldvalue = Sender.elements(i).value;
        if (((required == 'True') || (required == true) || (fldvalue.length > 0)) && (uiname != null) && (uiname > '')) {
            if (uiname == 'ssn_is' || uiname == 'ssn_is2') {
                if (!checkSSN(Sender.elements(i))) {
                    sMessage = sMessage + 'Kennitala ekki rétt!\n';
                }
            } else {
                if (Sender.elements(i).regexp) {
                    if (!validateInput(Sender.elements(i))) {
                        switch (uiname) {
                        case 'password':
                            sMessage = sMessage + 'Lykilorð uppfyllir ekki skilyrði!\n';
                            break;
                        case 'email':
                            sMessage = sMessage + 'Netfang ekki rétt!\n';
                            break;
                        case 'firstname':
                            sMessage = sMessage + 'Nafn vantar!\n';
                            break;
                        case 'address':
                            sMessage = sMessage + 'Heimilisfang vantar!\n';
                            break;
                        case 'phone':
                            sMessage = sMessage + 'Símanúmer vantar!\n';
                            break;
                        case 'zipcode':
                            sMessage = sMessage + 'Póstfang vantar!\n';
                            break;
                        case 'namskeid':
                            sMessage = sMessage + 'Ekkert námskeið valið!\n';
                            break;
                        case 'cardexpirydate':
                            sMessage = sMessage + 'Gildistími er ekki réttur!\n';
                            break;
                        default:
                            sMessage = sMessage + uiname + ' er ekki rétt!\n';
                            break;
                        }
                    }
                    if (uiname == 'password') {
                        if (fldvalue != Sender.password2.value) {
                            sMessage = sMessage + 'Lykilorð ekki eins!\n';
                        }
                    }
                }
            }
        }
    }
    if (sMessage == '') {
        return true;
    } else {
        alert(sMessage);
        //return true;
        return false;
    }
}
function validateInput(oInp) {
    var regExp = new RegExp(oInp.regexp, 'mig');
    if (regExp.test(oInp.value)) {
        return true;
    } else {
        return false;
    }
}
function checkSSN(oInp) {
    var sSSN = oInp.value;
    sSSN = sSSN.replace(/-/, '')
    if ((sSSN.length < 10) || (sSSN.length > 10))
    {
        return false;
    }
    var iLast = sSSN.slice((sSSN.length - 1))
    if (iLast != 8 && iLast != 9 && iLast != 10)
    {
        return false;
    }
    re = /\D+/;
    var isNum = re.test(sSSN);
    if (isNum == true)
    {
        return false;
    }
    var arrDig1 = new Array(10)
    var arrDig2 = new Array(8)
    var iSum = 0;
    for (var i = 0; i < 10; i++) {
        arrDig1[i] = sSSN.slice(i, i + 1);
    }
    arrDig2[0] = arrDig1[0] * 3;
    arrDig2[1] = arrDig1[1] * 2;
    arrDig2[2] = arrDig1[2] * 7;
    arrDig2[3] = arrDig1[3] * 6;
    arrDig2[4] = arrDig1[4] * 5;
    arrDig2[5] = arrDig1[5] * 4;
    arrDig2[6] = arrDig1[6] * 3;
    arrDig2[7] = arrDig1[7] * 2;
    for (var i = 0; i < 8; i++) {
        var iDig = parseInt(arrDig2[i]);
        iSum = iSum + iDig;
    }
    var iLeft = iSum % 11;
    var iVart = 11 - iLeft;
    if ((iVart == 11) || (iVart == 10)) {
        iVart = 0;
    }
    if (iVart != arrDig1[8]) {
        return false;
    }
    return true;
}