var version = "Viewing version: 1.8";
var expDays = 365;
var exp = new Date();
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
var ShowCount = 0;
var SwapColour;

function getCookieVal (offset) {
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1)
    endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
        return getCookieVal (j);
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) break;
    }
    return null;
}

function SetCookie (name, value) {
    var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : null;
    var path = (argc > 3) ? argv[3] : null;
    var domain = (argc > 4) ? argv[4] : null;
    var secure = (argc > 5) ? argv[5] : false;
    document.cookie = name + "=" + escape (value) +
    ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
    ((path == null) ? "" : ("; path=" + path)) +
    ((domain == null) ? "" : ("; domain=" + domain)) +
    ((secure == true) ? "; secure" : "");
}

function numbersonly(myfield, e, dec) {
    var key;
    var keychar;

    if (window.event)
        key = window.event.keyCode;
    else if (e)
        key = e.which;
    else
        return true;
        keychar = String.fromCharCode(key);

    if ((key==null) || (key==0) || (key==8) || 
        (key==9) || (key==13) || (key==27) )
        return true;
    else if ((("0123456789").indexOf(keychar) > -1))
        return true;
    else if (dec && (keychar == ".")){
        myfield.form.elements[dec].focus();
        return false;
    } else {
    return false;
    }
}


function ListToDoItems() {
    var NumToDoItems = GetCookie('PT_NumToDoList');
    var i;
    var ToDoItem;

    if (NumToDoItems == null) {
        NumToDoItems = 0;
    }

    ShowCount = 0;
    SwapColour = 0;
    for (i=1; i <= NumToDoItems; i++) {
        ToDoItem = GetCookie('PT_ToDoItem'+i);
        if (ToDoItem != null) {
            PrintItem(ToDoItem, i);
        }
    }
}

function DeleteItem(Count) {
    DeleteCookie('PT_ToDoItem'+Count);
    Effect.BlindUp("item"+Count, {duration:.6});
}

function PrintItem (ToDoItem, Count) {
    var color = "";
    SwapColour = 1 - SwapColour;
    if (SwapColour==1) {
        color = "bgcolor='#c0c0c0'"
    } ;
    ShowCount++;
    document.write("<li id=\"item" + Count + "\"><a href='javascript:DeleteItem(" + Count + ")' class='complete'></a>"+ToDoItem);
    document.write("</li>");
}

function AddItem() {
    var NumToDoItems = GetCookie('PT_NumToDoList');
    var i;
    var ToDoItem;
    if (NumToDoItems == null) {
        NumToDoItems = 0;
    }
    ToDoItem = document.getElementById('thething').value + " <span class=\"time\">(" + document.getElementById('thetime').value + " min.)</span>";
    if ((ToDoItem != null) && (ToDoItem != "undefined" )) {
        NumToDoItems++;
        SetCookie('PT_ToDoItem'+NumToDoItems, ToDoItem, exp);
        SetCookie('PT_NumToDoList',NumToDoItems, exp);
        window.location = window.location;
    }
}

function goReturn() {
     getEvent=event.keyCode;
     if (getEvent == "13") {
        AddItem();
     }
}

function magicWidth() {
    if (document.getElementById('thething').value == ""){
        document.getElementById('addbutton').style.color = "#ddd";
    } else {
        document.getElementById('addbutton').style.color = "#000";
    }
    
    if (document.getElementById('thething').value.length < 20){
        document.getElementById('thething').rows = 1;
        document.getElementById('rightfloat').style.marginTop = "0px";
    }
    
    if (document.getElementById('thething').value.length > 20){
        document.getElementById('thething').rows = 2;
        document.getElementById('rightfloat').style.marginTop = "10px";
    }
    
    if (document.getElementById('thething').value.length > 40){
        document.getElementById('thething').rows = 3;
        document.getElementById('rightfloat').style.marginTop = "20px";
    }
    
    if (document.getElementById('thething').value.length > 60){
        document.getElementById('thething').rows = 4;
        document.getElementById('rightfloat').style.marginTop = "30px";
    }
    
    goReturn();
}

function magicLength(){
    if(document.getElementById('thetime').value.length < 2){
        document.getElementById('thetime').style.width = "10px";
    } else {
        document.getElementById('thetime').style.width = "20px";
    }
}

function clear2() {
    document.getElementById('thetime').value = "";
}

function DeleteCookie (name) {
    var exp = new Date();
    exp.setTime (exp.getTime() - 1);
    var cval = GetCookie (name);
    document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

function showVersion(){
    alert(version);
}

function showTotal(){
    var NumToDoItems = GetCookie('PT_NumToDoList');
    if (NumToDoItems == null) {
        NumToDoItems = 0;
    }
    alert ("Total number of items:" + NumToDoItems);
}