// 2013-01-24
var domSupported = (document.getElementsByTagName &&
                    document.createElement);
 
 
window.onload = function () {
    if (domSupported) {
        if (document.getElementById("loginForm") != null) {
            setupLoginPage();
        } else if(document.getElementById("reportArea") != null) {
            setupReportPage();
        }
    }
}
 
function setupLoginPage() {
    var form_name = document.getElementById("loginForm").getElementsByTagName("form")[0].name;
    document.getElementById("loginForm").getElementsByTagName("form")[0].onsubmit = function () {
        return validate();
    }
 
    document.getElementById("reference").focus();
}
 
function setupReportPage() {
    createReportButtons();
}
 
function printPage() {
    window.print();
}
 
function validate() {
    if (isErrorListCreated()) {
        removeErrorList()
    }
 
    var ref = document.getElementById("reference");
    var code = document.getElementById("password");
 
    var nErrors = 0;
 
    var msgMissing = "Vänligen ange betalningsreferens";
    var msgIncorrect = "Fel betalningsreferens. Kontrollera vänligen" +
                       " din betalningsreferens och försök igen";
 
 
 
      if (checkValue(ref, /^BGC\d{13}$/, msgMissing, msgIncorrect) == false) {
        ref.focus();
        nErrors++;
      }
 
 
     msgMissing = "Vänligen ange lösenord";
     msgIncorrect = "Fel lösenord. Kontrollera vänligen " +
                    "lösenordet och försök igen";
 
    if (checkValue(code, /^\S{8}$/, msgMissing, msgIncorrect) == false) {
        if (nErrors == 0) {
            code.focus();
        }
        nErrors++;
    }
 
    return nErrors == 0;
}
 
function checkValue(field, pattern, msgMissing, msgIncorrect) {
    var nErrors = 0;
 
    var val = field.value;
    if (val.length == 0) {
        addError(msgMissing);
        nErrors++;
    } else {
        if (pattern.test(val) == false) {
            addError(msgIncorrect);
            nErrors++;
        }
    }
 
    return nErrors == 0;
}
 
function addError(message) {
    if (!isErrorListCreated()) {
         createErrorList();
    }
 
    // create new list item
    var item = document.createElement("li");
    item.appendChild(document.createTextNode(message));
 
    var list = document.getElementById("errorList");
    list.appendChild(item);
}
 
function isErrorListCreated() {
    return document.getElementById("errors") != null;
}
 
function removeErrorList() {
    var list = document.getElementById("errors");
    var parent = list.parentNode;
    parent.removeChild(list);
}
 
function createErrorList() {
    // create div
    var div = document.createElement("div");
    div.setAttribute("id", "errors");
 
    // create list
    var list = document.createElement("ul");
    list.setAttribute("id", "errorList");
    div.appendChild(list);
 
    // insert div
    var formDiv = document.getElementById("loginForm");
    var parent = formDiv.parentNode;
    parent.insertBefore(div, formDiv);
}
 
function createReportButtons() {
    // create export button
    var exportButton = document.createElement("button");
    exportButton.setAttribute("type", "button");
    exportButton.appendChild(document.createTextNode("Export"));
 
    // set export button action
    exportButton.onclick = function () {
         exportToExcel();
    }
 
    // create print button
    var printButton = document.createElement("button");
    printButton.setAttribute("type", "button");
    printButton.appendChild(document.createTextNode("Print"));
 
    // set print button action
    printButton.onclick = printPage
 
    // add the buttons
    div = document.getElementById("reportButtons");
    div.appendChild(exportButton);
    div.appendChild(printButton);
}
 
function exportToExcel() {
     submitForm("e");
}
 
function submitForm(func) {
    var form = document.getElementById("exportForm");
    document.getElementById("f").value = func;
    form.submit();
}