/////////////////////////////////
// File Name: mBanner.js       //
// Version: 2.1                  //
// By: Manish Kumar Namdeo     //
// http://www.mysticalm.com    //
/////////////////////////////////

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

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

// Node object
function Node(name, bannerType, bannerPath, bannerDuration, height, width, hyperlink, target,alt) {
	this.name = name;
	this.bannerType = bannerType;
	this.bannerPath = bannerPath;
	this.bannerDuration = bannerDuration;
	this.height = height
	this.width = width;
	this.hyperlink= hyperlink;
	this.target = target;
	this.altText = alt;
};

// Outputs the banner to the page
Banner.prototype.toString = function () {
    var str = "";
    var iBannerIndex = 0;
    if (this.changeOnRefresh == true) {
        // Read the cookie
        var BannerName = this.obj;
        var lastBannerIndex = readCookie(BannerName);

        if (isNaN(lastBannerIndex) == true || lastBannerIndex == null) {
            iBannerIndex = 0;
        } else if (lastBannerIndex == '' || parseInt(lastBannerIndex) >= this.aNodes.length - 1) {
            iBannerIndex = 0;
        } else {
            iBannerIndex = parseInt(lastBannerIndex) + 1;
        }

        // Set the new value
        createCookie(BannerName, iBannerIndex, 7);
    }

    for (var iCtr = 0; iCtr < this.aNodes.length; iCtr++) {
        if (this.changeOnRefresh == true && iBannerIndex != iCtr) {
            continue;
        }
        str = str + '<span name="' + this.aNodes[iCtr].name + '" '
        str = str + 'id="' + this.aNodes[iCtr].name + '" ';
        if (this.changeOnRefresh == true && iBannerIndex == iCtr) {
            str = str + 'class="m_banner_show" ';
        } else {
            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].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>';
            if (this.aNodes[iCtr].hyperlink != "") {
                str = str + '<PARAM NAME=flashvars VALUE="clickTag=' + this.aNodes[iCtr].hyperlink;
                if (this.aNodes[iCtr].target != "") {
                    str = str + '&clickTarget=' + this.aNodes[iCtr].target;
                }
                str = str + '" />';
            }
            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" ';
            if (this.aNodes[iCtr].hyperlink != "") {
                str = str + 'FLASHVARS="clickTag=' + this.aNodes[iCtr].hyperlink;
                if (this.aNodes[iCtr].target != "") {
                    str = str + '&clickTarget=' + this.aNodes[iCtr].target;
                }
                str = str + '" ';
            }

            str = str + '>';
            str = str + '</EMBED>'
            str = str + this.aNode[iCtr].altText;
            str = str + '</OBJECT>'
        } else if (this.aNodes[iCtr].bannerType == "IMAGE") {
            if (this.aNodes[iCtr].hyperlink != "") {
                str = str + '<a href="' + this.aNodes[iCtr].hyperlink + '" '
                if (this.aNodes[iCtr].target != "") {
                    str = str + ' target="' + this.aNodes[iCtr].target + '" ';
                }
                str = str + '>';
            }
            str = str + '<img src="' + this.aNodes[iCtr].bannerPath + '" ';
            str = str + 'border="0" ';
            str = str + 'alt="' + this.aNodes[iCtr].altText + '" ';
            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(){
	if(this.changeOnRefresh == false){
		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 thisBanner;
    var prevBanner = -1;
    if (this.currentBanner < this.aNodes.length) {
        thisBanner = this.currentBanner;
        if (this.aNodes.length > 1) {
            if (thisBanner > 0) {
                prevBanner = thisBanner - 1;
            } else {
                prevBanner = this.aNodes.length - 1;
            }
        }
        if (this.currentBanner < this.aNodes.length - 1) {
            this.currentBanner = this.currentBanner + 1;
        } else {
            this.currentBanner = 0;
        }
    }


    if (prevBanner >= 0) {
        jQuery(document.getElementById(this.aNodes[prevBanner].name)).css("position", "absolute");
        jQuery(document.getElementById(this.aNodes[prevBanner].name)).fadeOut(500);
    }
    jQuery(document.getElementById(this.aNodes[thisBanner].name)).css("position", "absolute");
    jQuery(document.getElementById(this.aNodes[thisBanner].name)).fadeIn(500);
}

// Following Cookie Code taken from http://www.quirksmode.org
function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}