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


*  
*  $('#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'),  
* 	  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)
*  }); 
*

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

jQuery(document).ready(function() {
   
	jQuery('.headerPic').innerfade({
		speed: 3000,
		timeout: 6000,
		type: 'sequence'
	});
	
 });


(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+10)).css('position', 'absolute').hide();
         };
         if (settings.type == "sequence") {
             setTimeout(function() {
                 $.innerfade.next(elements, settings, 1, 0);
             }, settings.timeout);
             $(elements[0]).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);
 };

})(jQuery);

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