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

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

// 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.id=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 + 'onclick="javascript:pageTracker._trackPageview(\''+this.aNodes[iCtr].bannerPath+'\'); ';
        if (this.aNodes[iCtr].hyperlink != ""){
           str = str + 'window.open("this.aNodes[iCtr].hyperlink","mywindow","width=400,height=200");';
        }
    
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>'
			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.getRandom = function(){          
    var num =1;
    if(this.used_nums.length==0)
    {
        for(var i=0;i<this.aNodes.length;i++)
        {
         this.used_nums[i]=i;   
        }
    }
    
    var len=this.used_nums.length;
    num=Math.floor(Math.random()*(len));            
    var id=this.used_nums[num];
    this.used_nums.splice(num,1);
    return id;
}
Banner.prototype.changeBanner = function(){          
	var thisBanner =this.currentBanner;
	var prevBanner = thisBanner;
	this.currentBanner = this.getRandom();
	
	
	

	if (prevBanner >= 0){         
		document.getElementById(this.aNodes[prevBanner].name).className = "m_banner_hide";
        
    }
	document.getElementById(this.aNodes[this.currentBanner].name).className = "m_banner_show";
    
}