/////////////////////////////////
// File Name: mBanner.js //
// By: Manish Kumar Namdeo //
/////////////////////////////////

// BANNER OBJECT
function Banner(objName) {
    this.obj = objName;
    this.aNodes = [];
    this.currentBanner = 0;

};

// ADD NEW BANNER
Banner.prototype.add = function(bannerType, bannerPath, bannerDuration, height, width, hyperlink) {
    this.aNodes[this.aNodes.length] = new Node(this.obj + "_" + this.aNodes.length, bannerType, bannerPath, bannerDuration, height, width, hyperlink);
};

// Node object
function Node(name, bannerType, bannerPath, bannerDuration, height, width, hyperlink) {
    this.name = name;
    this.bannerType = bannerType;
    this.bannerPath = bannerPath;
    this.bannerDuration = bannerDuration;
    this.height = height
    this.width = width;
    this.hyperlink = hyperlink;
    // alert (name +"|" + bannerType +"|" + bannerPath +"|" + bannerDuration +"|" + height +"|" + width + "|" + hyperlink);
};

// Outputs the banner to the page
Banner.prototype.toString = function() {
    var str = ""
    for (var iCtr = 0; iCtr < this.aNodes.length; iCtr++) {
        str = str + '<span name="' + this.aNodes[iCtr].name + '" '
        str = str + 'id="' + this.aNodes[iCtr].name + '" ';
        str = str + 'class="m_banner_hide" ';
        str = str + 'bgcolor="#FFFCDA" '; // CHANGE BANNER COLOR HERE
        str = str + 'align="center" ';
        str = str + 'valign="top" >\n';
        if (this.aNodes[iCtr].hyperlink != "") {
            str = str + '<a href="' + this.aNodes[iCtr].hyperlink + '">';
        }

        if (this.aNodes[iCtr].bannerType == "FLASH") {
            str = str + '<OBJECT '
            str = str + 'classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" '
            str = str + 'codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" '
            str = str + 'WIDTH="' + this.aNodes[iCtr].width + '" '
            str = str + 'HEIGHT="' + this.aNodes[iCtr].height + '" '
            str = str + 'id="bnr_' + this.aNodes[iCtr].name + '" '
            str = str + 'ALIGN="" '
            str = str + 'VIEWASTEXT>'
            str = str + '<PARAM NAME=movie VALUE="' + this.aNodes[iCtr].bannerPath + '">'
            str = str + '<PARAM NAME=quality VALUE=high>'
            str = str + '<PARAM NAME=bgcolor VALUE=#FFFCDA>'
            str = str + '<EMBED ';
            str = str + 'src="' + this.aNodes[iCtr].bannerPath + '" '
            str = str + 'quality=high '
            // str = str + 'bgcolor=#FFFCDA '
            str = str + 'WIDTH="' + this.aNodes[iCtr].width + '" '
            str = str + 'HEIGHT="' + this.aNodes[iCtr].height + '" '
            str = str + 'NAME="bnr_' + this.aNodes[iCtr].name + '" '
            str = str + 'ALIGN="center" '
            str = str + 'TYPE="application/x-shockwave-flash" '
            str = str + 'PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer">'
            str = str + '</EMBED>'
            str = str + '</OBJECT>'
        } else if (this.aNodes[iCtr].bannerType == "IMAGE") {
            str = str + '<img src="' + this.aNodes[iCtr].bannerPath + '" ';
            str = str + 'border="0" ';
            str = str + 'height="' + this.aNodes[iCtr].height + '" ';
            str = str + 'width="' + this.aNodes[iCtr].width + '">';
        }

        if (this.aNodes[iCtr].hyperlink != "") {
            str = str + '</a>';
        }

        str += '</span>';
    }
    return str;
};

// START THE BANNER ROTATION
Banner.prototype.start = function() {
    this.changeBanner();
    var thisBannerObj = this.obj;
    // CURRENT BANNER IS ALREADY INCREMENTED IN cahngeBanner() FUNCTION
    setTimeout(thisBannerObj + ".start()", this.aNodes[this.currentBanner].bannerDuration * 1000);
}

// CHANGE BANNER
Banner.prototype.changeBanner = function() {
    var oldBanner = this.currentBanner
    do {
        this.currentBanner = Math.round((this.aNodes.length - 1) * Math.random())
    } while (this.currentBanner == oldBanner)

    if (document.getElementById(this.aNodes[oldBanner].name).className == 'm_banner_show') {
        document.getElementById(this.aNodes[oldBanner].name).className = "m_banner_hide";
    }
    document.getElementById(this.aNodes[this.currentBanner].name).className = "m_banner_show";
}