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   = isNaN(parseInt(this.layer.style.height))?parseInt(this.layer.scrollHeight)+0:parseInt(this.layer.style.height) + 0;
        this.C_Width    = isNaN(parseInt(this.layer.style.height))?parseInt(this.layer.scrollWidth)+0:parseInt(this.layer.style.width) + 0;
        this.C_Speed    = Math.pow(10-getDivCustomProperty(this.layer, "speed", true) + 1, 2);
        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