function checkRequiredFields() {
    var alertstring = "Följande fält är obligatoriska:";
    var errorsFound = false;
    var stage = document.getElementById("o_stage").value;
    if (stage == "1") {
        var om_cust_ordernr = document.getElementById("om_cust_ordernr").value;
        var CustomerCompany = document.getElementById("CustomerCompany").value;
        var sel_companies = document.getElementById("sel_companies").value;
        if (CustomerCompany != sel_companies && om_cust_ordernr.length == 0) {
            alertstring += "\nOrdernummer";
            errorsFound = true;
        }
        var selectedAddress = document.getElementById("sel_changedeladdress_hidden");
        if (selectedAddress.value == 0) {
            alertstring += "\nLeveransadress";
            errorsFound = true;
        }
        var selectedReference = document.getElementById("sel_custref");
        if (CustomerCompany != sel_companies && selectedReference.selectedIndex == 0) {
            alertstring += "\nReferens hos kunden";
            errorsFound = true;
        }
    }

    if (errorsFound) {
        alert(alertstring);
        return false;
    } else {
        return true;
    }
}

function setDeliveryAddress(value) {
    var hiddenfield = document.getElementById("sel_changedeladdress_hidden");
    hiddenfield.value = value;
}

function setCustomerText(objSelectBox) {
    var textspan1 = $("#ordernumbertext_1");
    var textspan2 = $("#ordernumbertext_2");
    if (objSelectBox.selectedIndex == 0) {
        if (textspan1 != null) { textspan1.html("Ert ordernummer:"); }
        if (textspan2 != null) { textspan2.html(""); }
    } else {
        if (textspan1 != null) { textspan1.html("Kundens ordernummer:&nbsp;<span style='color:Red;'>*</span>"); }
        if (textspan2 != null) { textspan2.html("Innan avropet/beställningen kan sändas måste ni ange något i fältet &quot;Kundens ordernummer&quot;."); }
    }
}