// cookie functions
//
function setCookie(name, value, expires, path, domain, secure)
{
    var curCookie = name + "=" + escape(value) +
      (expires ? "; expires=" + expires.toGMTString() : "") +
      (path ? "; path=" + path : "") +
      (domain ? "; domain=" + domain : "") +
      (secure ? "; secure" : "");

    return document.cookie = curCookie;
}
function getCookie(name)
{
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);

    if (begin == -1)
    {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    }
    else
    {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1)
    {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}

//*****
//
if (!getCookie('currentImageIndex'))
{
    var now = new Date();
    now.setMinutes(now.getMinutes() + 1);

    setCookie('currentImageIndex', -1, now, null, null, null);
}

// JSON Object
// (http://www.json.org/js.html)
//
// This is where you add more images
//
var slideShow = { "bindings":
                    [
					    { "imageUrl": "images/TCI_IWB.jpg", "linkLocation": "/whiteboard", "linkTitle": "TCI Interactive Whiteboard", "onClick": "", "altText": "TCI Interactive Whiteboard" },
                        { "imageUrl": "images/home-30-day-trial.jpg", "linkLocation": "http://info.teachtci.com/trial", "linkTitle": "Qualify for a free 30-day trial!", "onClick": "", "altText": "Qualify for a free 30-day trial!" },
                        { "imageUrl": "images/demo-ssa-ap.jpg", "linkLocation": "flash/demo-ssa-ap/video.html", "linkTitle": "Social Studies Alive! America's Past", "onClick": "return popUp(this.href,1020,770);", "altText": "See Social Studies Alive - America's Past in action" },
                        { "imageUrl": "images/demo-ha-pai.jpg", "linkLocation": "flash/demo-ha-pai/video.html", "linkTitle": "History Alive! Pursuing American Ideals", "onClick": "return popUp(this.href,1020,770);", "altText": "See History Alive - Pursuing American Ideals in action" },
                        { "imageUrl": "images/home_ga_video.jpg", "linkLocation": "programs/geography-alive-video.html?autostart=true", "linkTitle": "See Geography Alive! in action", "onClick": "", "altText": "See Geography Alive in action" },
                        { "imageUrl": "images/demo-ea-power-choose.jpg", "linkLocation": "flash/demo-ea-pc/video.html", "linkTitle": "Econ Alive! The Power to Choose", "onClick": "return popUp(this.href,1020,770);", "altText": "See Econ Alive - The Power To Choose in action" }
                    ]
                };

//*****
//
function ChangeImage() {

    var now = new Date();
    now.setMinutes(now.getMinutes() + 1);

    var currentImageIndex = parseInt(getCookie('currentImageIndex'), 10);
    currentImageIndex++;
    
    if (currentImageIndex >= slideShow.bindings.length) {
        currentImageIndex = 0;
    }
    setCookie('currentImageIndex', currentImageIndex, now, null, null, null);

    var currentSlide = slideShow.bindings[currentImageIndex];

return document.write('<a href="' + currentSlide.linkLocation + '" title="' + 
                                    currentSlide.linkTitle + '" onclick="' + 
                                    currentSlide.onClick + '"><img src="' + 
                                    currentSlide.imageUrl + '" ' + 'alt="' +
                                    currentSlide.altText + '" style="width: 305px; height: 178px; margin: 32px 17px;" /></a>');
}


// Force IE 7 to refresh
//
// This is only for IE7 browser. FF & Opera don't need this.


function refresh() {
    var sURL = unescape(window.location.pathname);
    window.location.href = sURL; 
}

function forceIE7_Refresh() {
    var longTime = 80000*1000
    setTimeout( "refresh()", longTime );
}


window.onload = forceIE7_Refresh;