/* =========================================================

// jquery.innerfade.js

// Datum: 2008-02-14
// Firma: Medienfreunde Hofmann & Baldes GbR
// Author: Torsten Baldes
// Mail: t.baldes@medienfreunde.com
// Web: http://medienfreunde.com

// based on the work of Matt Oakes http://portfolio.gizone.co.uk/applications/slideshow/
// and Ralf S. Engelschall http://trainofthoughts.org/

 *
 *  <ul id="news"> 
 *      <li>content 1</li>
 *      <li>content 2</li>
 *      <li>content 3</li>
 *  </ul>
 *  
 *  $('#news').innerfade({ 
 *	  animationtype: Type of animation 'fade' or 'slide' (Default: 'fade'), 
 *	  speed: Fading-/Sliding-Speed in milliseconds or keywords (slow, normal or fast) (Default: 'normal'), 
 *	  timeout: Time between the fades in milliseconds (Default: '2000'), 
 *	  type: Type of slideshow: 'sequence', 'random' or 'random_start' (Default: 'sequence'), 
 * 		containerheight: Height of the containing element in any css-height-value (Default: 'auto'),
 *	  runningclass: CSS-Class which the container get’s applied (Default: 'innerfade'),
 *	  children: optional children selector (Default: null)
 *  }); 
 *

// ========================================================= */


(function($) {

    $.fn.innerfade = function(options) {
        return this.each(function() {   
            $.innerfade(this, options);
        });
    };

    $.innerfade = function(container, options) {
        var settings = {
        		'animationtype':    'fade',
            'speed':            'normal',
            'type':             'sequence',
            'timeout':          2000,
            'containerheight':  'auto',
            'runningclass':     'innerfade',
            'children':         null
        };
        if (options)
            $.extend(settings, options);
        if (settings.children === null)
            var elements = $(container).children();
        else
            var elements = $(container).children(settings.children);
        if (elements.length > 1) {
            $(container).css('position', 'relative').css('height', settings.containerheight).addClass(settings.runningclass);
            for (var i = 0; i < elements.length; i++) {
                $(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute').hide();
            };
            if (settings.type == "sequence") {
                setTimeout(function() {
                    $.innerfade.next(elements, settings, 1, 0);
                }, settings.timeout);
                $(elements[0]).show();
            } else if (settings.type == "random") {
            		var last = Math.floor ( Math.random () * ( elements.length ) );
                setTimeout(function() {
                    do { 
												current = Math.floor ( Math.random ( ) * ( elements.length ) );
										} while (last == current );             
										$.innerfade.next(elements, settings, current, last);
                }, settings.timeout);
                $(elements[last]).show();
						} else if ( settings.type == 'random_start' ) {
								settings.type = 'sequence';
								var current = Math.floor ( Math.random () * ( elements.length ) );
								setTimeout(function(){
									$.innerfade.next(elements, settings, (current + 1) %  elements.length, current);
								}, settings.timeout);
								$(elements[current]).show();
						}	else {
							alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
						}
				}
    };

    $.innerfade.next = function(elements, settings, current, last) {
        if (settings.animationtype == 'slide') {
            $(elements[last]).slideUp(settings.speed);
            $(elements[current]).slideDown(settings.speed);
        } else if (settings.animationtype == 'fade') {
            $(elements[last]).fadeOut(settings.speed);
            $(elements[current]).fadeIn(settings.speed, function() {
							removeFilter($(this)[0]);
						});
        } else
            alert('Innerfade-animationtype must either be \'slide\' or \'fade\'');
        if (settings.type == "sequence") {
            if ((current + 1) < elements.length) {
                current = current + 1;
                last = current - 1;
            } else {
                current = 0;
                last = elements.length - 1;
            }
        } else if (settings.type == "random") {
            last = current;
            while (current == last)
                current = Math.floor(Math.random() * elements.length);
        } else
            alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
        setTimeout((function() {
            $.innerfade.next(elements, settings, current, last);
        }), settings.timeout);
    };

	$.fn.jStockTicker = function(options) {

		if (typeof (options) == 'undefined') {
			options = {};
		}

		var settings = $.extend( {}, $.fn.jStockTicker.defaults, options);

		var $ticker = $(this);

		settings.tickerID = $ticker[0].id;
		
		$.fn.jStockTicker.settings[settings.tickerID] = {};

		var $wrap = null;

		if ($ticker.parent().get(0).className != 'wrap') {
			$wrap = $ticker.wrap("<div class='wrap'></div>");
		}

		var $tickerContainer = null;

		if ($ticker.parent().parent().get(0).className != 'container') {
			$tickerContainer = $ticker.parent().wrap(
					"<div class='container'></div>");
		}
		
		var node = $ticker[0].firstChild;
		var next;
		
		while(node) {
			next = node.nextSibling;
			if(node.NodeType == 3) {
				$ticker[0].removeChild(node);
			}
			node = next;
		}
		
		var shiftLeftAt = $ticker.children().get(0).offsetWidth;
		
		$.fn.jStockTicker.settings[settings.tickerID].shiftLeftAt = shiftLeftAt;
		$.fn.jStockTicker.settings[settings.tickerID].left = 0;
		$.fn.jStockTicker.settings[settings.tickerID].runid = null;
		
		$ticker.width(2 * screen.availWidth);
		
		function startTicker() {
			stopTicker();
			
			var params = $.fn.jStockTicker.settings[settings.tickerID]; 
			params.left -= settings.speed;
			if(params.left <= params.shiftLeftAt * -1) {
				params.left = 0;
				$ticker.append($ticker.children().get(0));
				params.shiftLeftAt = $ticker.children().get(0).offsetWidth;
			}
			
			$ticker.css('left', params.left + 'px');
			params.runId = setTimeout(arguments.callee, settings.interval);
			
			$.fn.jStockTicker.settings[settings.tickerID] = params;
		}
		
		function stopTicker() {
			var params = $.fn.jStockTicker.settings[settings.tickerID];
			if (params.runId)
			    clearTimeout(params.runId);
			    
			params.runId = null;
			
			$.fn.jStockTicker.settings[settings.tickerID] = params;
		}
		
		function updateTicker() {
			
			stopTicker();
			startTicker();
		}
		
		$ticker.hover(stopTicker,startTicker);
		
		startTicker();
	};

	$.fn.jStockTicker.settings = {};
	
	$.fn.jStockTicker.defaults = {
		tickerID :null,
		url :null,
		speed :1,
		interval :20
	};
	
	
})(jQuery);

// **** remove Opacity-Filter in ie ****
function removeFilter(element) {
	if(element.style.removeAttribute){
		element.style.removeAttribute('filter');
	}
}