/*
* vertical news ticker
* Tadas Juozapaitis ( kasp3rito@gmail.com )
* http://plugins.jquery.com/project/vTicker
*/
(function($){
    $.fn.vTicker = function(options) {
	var defaults = {
	    speed: 1000,
	    pause: 4000,
	    showItems: 3,
	    animation: '',
	    mousePause: true,
	    isPaused: false,
	    direction: 'up',
	    height: 0
	};
	
	var options = $.extend(defaults, options);
	
	moveUp = function(obj2, height, options){
	    if(options.isPaused)
		return;
	    
	    var obj = obj2.children('ul');
	    
    	    var clone = obj.children('li:first').clone(true);
	    
	    //if(options.height > 0)
	    //{	
		height = obj.children('li:first').height() + 21;
	    //}		

    	    obj.animate({top: '-=' + height + 'px'}, options.speed, function() {
        	$(this).children('li:first').remove();
        	$(this).css('top', '0px');
            });
	    
	    if(options.animation == 'fade')
	    {
		obj.children('li:first').fadeOut(options.speed);
		if(options.height == 0)
		{
		    obj.children('li:eq(' + options.showItems + ')').hide().fadeIn(options.speed);
		}
	    }
	    
    	    clone.appendTo(obj);
	};
	
	moveDown = function(obj2, height, options){
	    if(options.isPaused)
		return;
	    
	    var obj = obj2.children('ul');
	    
    	    var clone = obj.children('li:last').clone(true);
	    
	    if(options.height > 0)
	    {
		height = obj.children('li:first').height();
	    }
	    
	    obj.css('top', '-' + height + 'px')
		.prepend(clone);
	    
    	    obj.animate({top: 0}, options.speed, function() {
        	$(this).children('li:last').remove();
            });
	    
	    if(options.animation == 'fade')
	    {
		if(options.height == 0)
		{
		    obj.children('li:eq(' + options.showItems + ')').fadeOut(options.speed);
		}
		obj.children('li:first').hide().fadeIn(options.speed);
	    }
	};
	
	return this.each(function() {
	    var obj = $(this);
	    var maxHeight = 0;
	    
	    obj.css({overflow: 'hidden', position: 'relative'})
		.children('ul').css({position: 'absolute', margin: 0, padding: 0})
		.children('li').css({margin: 0, padding: 0});
	    
	    if(options.height == 0)
	    {
		obj.children('ul').children('li').each(function(){
		    if($(this).height() > maxHeight)
		    {
			maxHeight = $(this).height();
		    }
		});
		
		obj.children('ul').children('li').each(function(){
		    //$(this).height(maxHeight);
		});
		
		//obj.height(maxHeight * options.showItems);
		obj.height("260px");
	    }
	    else
	    {
		//obj.height(options.height);
	    }
	    
    	    var interval = setInterval(function(){ 
		if(options.direction == 'up')
		{ 
		    moveUp(obj, maxHeight, options); 
		}
		else
		{ 
		    moveDown(obj, maxHeight, options); 
		} 
	    }, options.pause);
	    
	    if(options.mousePause)
	    {
		obj.bind("mouseenter",function(){
		    options.isPaused = true;
		}).bind("mouseleave",function(){
		    options.isPaused = false;
		});
	    }
	});
    };
})(jQuery);