/*
 addEvent function found at http://www.scottandrew.com/weblog/articles/cbs-events
 */
function addEvent(obj, evType, fn)
{
    if (obj.addEventListener)
    {
        obj.addEventListener(evType, fn, true);
        return true;
    } else if (obj.attachEvent)
    {
        var r = obj.attachEvent("on" + evType, fn);
        return r;
    }
    else
    {
        return false;
    }
}

/*
 createElement function found at http://simon.incutio.com/archive/2003/06/15/javascriptWithXML
 */
function createElement(element)
{
    if (typeof document.createElementNS != 'undefined')
    {
        return document.createElementNS('http://www.w3.org/1999/xhtml', element);
    }
    if (typeof document.createElement != 'undefined')
    {
        return document.createElement(element);
    }
    return false;
}

function insertTop(obj)
{
    // Create the two div elements needed for the top of the box
    d = createElement("div");
    d.className = "bt"; // The outer div needs a class name
    d2 = createElement("div");
    d.appendChild(d2);
    obj.insertBefore(d, obj.firstChild);
}

function insertBottom(obj)
{
    // Create the two div elements needed for the bottom of the box
    d = createElement("div");
    d.className = "bb"; // The outer div needs a class name
    d2 = createElement("div");
    d.appendChild(d2);
    obj.appendChild(d);
}

function initCB()
{
    // Find all div elements
    var divs = document.getElementsByTagName('div');
    var cbDivs = [];
    for (var i = 0; i < divs.length; i++)
    {
        // Find all div elements with cbb in their class attribute while allowing for multiple class names
        if (/\bcbb\b/.test(divs[i].className))
            cbDivs[cbDivs.length] = divs[i];
    }
    // Loop through the found div elements
    var thediv, outer, i1, i2;
    for (var i = 0; i < cbDivs.length; i++)
    {
        // Save the original outer div for later
        thediv = cbDivs[i];
        // 	Create a new div, give it the original div's class attribute, and replace 'cbb' with 'cb'
        outer = createElement('div');
        outer.className = thediv.className;
        outer.className = thediv.className.replace('cbb', 'cb');
        // Change the original div's class name and replace it with the new div
        thediv.className = 'i3';
        thediv.parentNode.replaceChild(outer, thediv);
        // Create two new div elements and insert them into the outermost div
        i1 = createElement('div');
        i1.className = 'i1';
        outer.appendChild(i1);
        i2 = createElement('div');
        i2.className = 'i2';
        i1.appendChild(i2);
        // Insert the original div
        i2.appendChild(thediv);
        // Insert the top and bottom divs
        insertTop(outer);
        insertBottom(outer);
    }
}

if (document.getElementById && document.createTextNode)
{
    addEvent(window, 'load', initCB);
}

// Returns a path to an pdf document

function GetTodaysPdf()
{
    var path = 'Images/';
    var ext = '.pdf';
    var today = new Date();
    var thisYear = today.getFullYear();
    var d = dayOfYear(today);

    var is_leap = (((thisYear % 4 == 0) && (thisYear % 100 != 0)) || (thisYear % 400 == 0));

    // If it is a leap year and we are past Feb 28, then decement number of days
    // so taht Feb 29 shows Feb 28
    if (is_leap && d > 59)
    {
        d -= 1;
    }

    return path + d + ext;
}

// returns the number of days since the beginning of the current year
function dayOfYear(today)
{
    var MonthArray = new Array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
//    var today = new Date();
    var todayy = today.getFullYear();

    var todaym = today.getMonth();
    var todayd = today.getDate();
    var todaystring = MonthArray[todaym] + " " + todayd + ", " + todayy;
    var paststring = MonthArray[0] + " 1, " + todayy;
    return (Math.round((Date.parse(todaystring) - Date.parse(paststring)) / (24 * 60 * 60 * 1000))) + 1;
}