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

// 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++) {
               // $(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute').hide();
                //$(elements[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);
    };

})(jQuery);

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

// when the DOM is ready:
$(document).ready(function () {
	try {
		$('#slide').innerfade({
			animationtype: 'fade',
			speed: 'slow', 
			timeout: 4000, 
			type: 'sequence',
			containerheight: 288,
			children: 'img'
		});
	} catch (err) {}
	bgresize();
});	

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
		    if (this.className.split('last').length > 1) {
			  //alert(this.className);
			  this.className+=" sfhover lastie ";  
			} else {
			  this.className+=" sfhover "
			}
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			this.className=this.className.replace(new RegExp(" lastie\\b"), "");
			this.className=this.className.replace(new RegExp(" lastli\\b"), "");
		}
	}
}
var ratio = 0;

function bgresize() {
	
	var target = document.getElementById('bgdiv').firstChild;
	
	if (target) {
		
		var dimensions = {width: target.width, height: target.height};
		
		if (ratio == 0) {
			ratio = target.height / target.width;
		}
		
		if (document.documentElement) {
			dimensions.width = document.documentElement.offsetWidth;
			dimensions.height = document.documentElement.offsetHeight;
		}
		else if (window.innerWidth && window.innerHeight) {
			dimensions.width = window.innerWidth;
			dimensions.height = window.innerHeight;
		}
		
		if (ratio) {
			if (dimensions.width * ratio >= dimensions.height) {
				target.width = dimensions.width;
				target.height = dimensions.width * ratio;
			}
			else {
				target.width = dimensions.height * (1/ratio);
				target.height = dimensions.height;
			}
		}
	}
}

window.onresize = bgresize;

if (window.attachEvent) window.attachEvent("onload", sfHover);