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

// 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>
 *  
 *  jqf('#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(jqf) {

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

/* 
jqf.innerfade = function(txtfile, divId, divClass, delay, fadeornot) {
  this.txtfile = txtfile ;
  this.tickerid = divId;
  this.delay = delay;
  this.isMouseOver = 0;
  this.pointer = 0;
  this.opacitystring = (typeof fadeornot != "undefined") ? "width:100%;opacity: 1;-moz-opacity:1;filter:progid:DXImageTransform.Microsoft.alpha(opacity=100);" : "";
  if (this.opacitystring != "") {
    this.delay += 500;
  }
  this.opacitysetting = 0.2;
  this.news = [];
  this.ajaxobj = getAJAX()
  document.write('<div id="'+divId+'" class="'+divClass+'"><div style="'+this.opacitystring+'">' + loadingMessage + '</div></div>')
  this.getXMLfile()
} */



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

    jqf.innerfade.next = function(elements, settings, current, last) {
        if (settings.animationtype == 'slide') {
            jqf(elements[last]).slideUp(settings.speed);
            jqf(elements[current]).slideDown(settings.speed);
        } else if (settings.animationtype == 'fade') {
            jqf(elements[last]).fadeOut(settings.speed);
            jqf(elements[current]).fadeIn(settings.speed, function() {
							removeFilter(jqf(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() {
            jqf.innerfade.next(elements, settings, current, last);
        }), settings.timeout);
    };

})(jQuery);

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