// JScript File
function getAd()
{
    var strAd  = "";

    var arrAds = new Array();
    
    // ------
    var arrAd = new Array();

    arrAd["primary_image"] = "/images/pages/ads_38_img0.jpg";

    arrAd["primary_image_alt"] = "LEARN OUR LINGO";

    arrAd["footer_image"] = "/images/pages/ads_38_img0f.png";

    arrAd["footer_image_alt"] = "Rail Terminology";

    arrAd["link"] = "/tacomarail/rail-service/rail-terminology.htm";

    arrAd["link_title"] = "Rail Terminology";

    arrAds[0] = arrAd;

    // ------
    var arrAd = new Array();

    arrAd["primary_image"] = "/images/pages/ads_79_img0.jpg";

    arrAd["primary_image_alt"] = "Why Tacoma owns a railroad";

    arrAd["footer_image"] = "/images/pages/ads_79_img0f.png";

    arrAd["footer_image_alt"] = "Our History";

    arrAd["link"] = "/tacomarail/about/history.htm";

    arrAd["link_title"] = "Our History";

    arrAds[1] = arrAd;

    // ------
    var arrAd = new Array();

    arrAd["primary_image"] = "/images/pages/ads_80_img0.jpg";

    arrAd["primary_image_alt"] = "Rail safety";

    arrAd["footer_image"] = "/images/pages/ads_80_img0f.png";

    arrAd["footer_image_alt"] = "Learn about Operaion Lifesaver";

    arrAd["link"] = "/tacomarail/safety/public-safety-outreach.htm";

    arrAd["link_title"] = "Learn about Operaion Lifesaver";

    arrAds[2] = arrAd;

    
    // randomly select one of the ads
    if( arrAds.length > 0 )
    {
        var randomnumber = Math.floor( Math.random() * arrAds.length )
        
        arrSelectedAd = arrAds[randomnumber];
        
        strAd = "<a href=\"" + arrSelectedAd["link"] + "\" title=\"" + arrSelectedAd["link_title"] + "\">" +
                "<img src=\"" + arrSelectedAd["primary_image"] + "\" alt=\"" + arrSelectedAd["primary_image_alt"] + "\" />" +
                "<img src=\"" + arrSelectedAd["footer_image"] + "\" alt=\"" + arrSelectedAd["footer_image_alt"] + "\" />" +
                "</a>";
        
    }   //end if
    
    return strAd;

}   //end function