var headlines = headlines != null ? headlines  : new Array();

if (typeof(rollHeadlines) == "undefined")
function rollHeadlines() {
	for ( var i = 0; i < headlines.length; i++ ) {
		headlines[i].init();
		headlines[i].id = i;
	}			
	startRoll();
}

if (typeof(startRoll) == "undefined")
function startRoll() {
	for ( var i = 0; i < headlines.length; i++ )
		setTimeout("headlines[ " + i + "].run()", eval("headlines[i].C_Speed"));
}




/**  Class Headline
 *
 */            
function Headline(layerId) {   
	this.C_TopOffset  = 0;                
	this.C_LeftOffset = 0;        	    
	this.C_Speed      = 0
	this.C_Height     = 0;
	this.C_Width      = 0;
	this.C_Spacing    = 0;
	this.C_EndSpace   = 0; // TODO : implementeaza si cacatul asta 
	this.C_Wait		  = 0;                       

	this.layerId      = layerId;
	this.layer        = null;
	this.quotes       = new Array();
	this.direction    = null;
	this.id           = 0; // The position in headlines global array
	this.initialNrOfQuotes = 0;	                     	                                           	    	            

	this.init = function init() {  
		this.layer      = this.getLayer();                	
		this.C_Height   = parseInt(this.layer.style.height) + 0;
		this.C_Width    = parseInt(this.layer.style.width) + 0;	        	        
		this.C_Speed    = 30 - getDivCustomProperty(this.layer, "speed", true);
		this.C_Spacing  = getDivCustomProperty(this.layer, "spacing", true);
		this.C_Wait     = getDivCustomProperty(this.layer, "wait", true);
		this.C_EndSpace = getDivCustomProperty(this.layer, "endSpace", true);			        	        
		this.direction  = getDivCustomProperty(this.layer, "drct", false);

		this.initPosition();
		this.initContent();           	        	       	    	                
	}

	/**
	 * Duplicate quotes to fill in headline content
	 */
	this.initContent = function initContent() {
		var initialNrOfQuotes =  this.layer.getElementsByTagName("div").length;
		eval("this.initForRoll" + this.direction + "()");
		var linesList = this.layer.getElementsByTagName("div");  
		if (linesList && linesList.length) 
			for (var i = 0; i < linesList.length; i++) {                      
				var quote = linesList.item(i);
				if (quote) {
					this.quotes[i] = eval("new Quote" + this.direction + "(quote, this)");	                    
				} 

				// Inspert space after all initial quotes are rolled
				if ( ( i + 1 ) % initialNrOfQuotes == 0)
					this.quotes[i].C_EndSpace = this.C_EndSpace;
				else 
					this.quotes[i].C_EndSpace = 0;

				this.quotes[i].init();
			}

		this.quotes[0].isRolling = true;	        	        	        	            
	}  

	this.initForRollUp = function() {
		var imgList = this.layer.getElementsByTagName("img");   
		var imgLgt  = imgList.length;        	
		var pos1    = findObjectTopOffset(imgList.item(0));
		var pos2    = imgLgt > 1 ? findObjectTopOffset(imgList.item(imgLgt - 1)) :
			this.C_TopOffset;	                    	

		var diff = imgLgt > 1 ? (pos2 - pos1) : (pos1 - pos2);

		// Duplicate the lines to ensure that no white spaces will appear	        	       
		var content = this.layer.innerHTML; 

		if (diff < this.C_Height) {          
			var x = this.C_Height/diff;
			for (var i = 0; i < parseInt(x) + 1; i++)
				this.layer.innerHTML += content;	                	                	            
		} else if (!(diff < 1))
			this.layer.innerHTML += content;                    
	}

	this.initForRollLeft = function() {		
		var imgList = this.layer.getElementsByTagName("img");      
		var imgLgt  = imgList.length;
		var pos1    = findObjectLeftOffset(imgList.item(0));
		var pos2    = imgLgt > 1 ? findObjectLeftOffset(imgList.item(imgLgt - 1)) :
			this.C_LeftOffset;	                    	

		var diff = imgLgt > 1 ? (pos2 - pos1) : (pos1 - pos2);
		var content = this.layer.innerHTML;

		if (diff < this.C_Width) {   
			var x = parseInt(this.C_Width/diff) + 1;
			for (var i = 0; i <= x ; i++)
				this.layer.innerHTML += content;
		} else
			this.layer.innerHTML += content;	            	            
	}

	this.initPosition = function initPosition() {  
		this.C_TopOffset  = findObjectTopOffset(this.getReperTop());                    	        	        
		this.C_LeftOffset = findObjectLeftOffset(this.getReperTop());

		setObjectStyleProperty(this.layer, "width", this.C_Width);	        
		setObjectStyleProperty(this.layer, "height", this.C_Height);	        	        	    
	}


	this.run = function run() {
		var quotes  = this.quotes;
		var length  = quotes.length;

		var quoteOnTop = false;							        	        	
		if (quotes[0].isRolling) {         	               
			quotes[0].rollLine(); 	                

			if (!quoteOnTop)
				quoteOnTop = quotes[0].isOnTop();
		}

		if (length > 1) {
			var rollFirstQuote = false;
			for (var i = 1; i < length; i++) {                                                           
				if (quotes[i - 1].isAbove() || quotes[i].isRolling) {
					quotes[i].rollLine(); 	                        

					if (!quoteOnTop)
						quoteOnTop = quotes[i].isOnTop();
				}
			}

			if (quotes[length - 1].isAbove())
				quotes[0].rollLine();  
		}

		this.quotes = quotes;

		if (!quoteOnTop)
			setTimeout("headlines[ " + this.id + "].run()", eval("headlines[this.id].C_Speed")) 			
		else
			setTimeout("headlines[ " + this.id + "].run()", eval("this.C_Wait * 1000"));			
	}

	this.getReperTop = function getReperTop() {
		return document.getElementById("reperTop_" + this.layerId);
	}            

	this.getReperBottom = function getReperBottom() {
		return document.getElementById("reperBottom_" + this.layerId);
	} 

	this.getDirection = function getDirection() {
		return this.direction;
	}   

	this.getLayer = function getLayer() {
		return document.getElementById(this.layerId);
	} 


	// Add this headline to gloabal Array of headlines
	headlines[headlines.length] = this;                                                          
}// End Headline class