// JavaScript Document

function highlight(obj) {
	if($(obj).hasClassName('highlight')) {
		$(obj).removeClassName('highlight');
	}
	else {
		$(obj).addClassName('highlight');
	}
}

function scrollright(obj) {
	Position = Element.getPosition("thumbimages");
	if (Position[0] == 0 ) {
		Element.setLeft("thumbimages", -770);
		$('leftbutton').src = '/resources/icon_thumb_prev.gif';
		$('rightbutton').src = '/resources/icon_thumb_next_gray.gif';
		
	}
}
function scrollleft(obj) {
	Position = Element.getPosition("thumbimages");
	if (Position[0] != 0 ) {
		Element.setLeft("thumbimages", 0);
		$('leftbutton').src = '/resources/icon_thumb_prev_gray.gif';
		$('rightbutton').src = '/resources/icon_thumb_next.gif';
		

	}
}

function setImg(path, name, obj, len, a) {
	$('bigimg').src = path+name;
	for (i=0; i<len-1; i++) {
	if (i<10) {
			who = 'thumb0'+i;
		} else {
			who = 'thumb'+i;
		}
		$(who).removeClassName('active');
	}
	$(obj).addClassName('active');
	a.blur();
}

function showBook() {
	$('buchung').show();
}
function hideBook() {
	$('buchung').hide();
}

//	Additional methods for Element
Object.extend(Element, {
	setHeight: function(element,h) {
   		element = $(element);
		element.style.height = h +"px";
	},
	setTop: function(element,t) {
	   	element = $(element);
		element.style.top = t +"px";
	},
	setLeft: function(element,l) {
	   	element = $(element);
		element.style.left = l +"px";
	},
	getPosition: function(element) {
var top;
var left;	   	
element = $(element);
			left = element.style.left;
			top = element.style.top;
			left = left.replace(/px/, "");
			top = top.replace(/px/, "");
			arrayPosition = new Array(left, top);
			return arrayPosition;
	}
});

// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}

	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

// -----------------------------------------------------------------------------------

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){

	var yScroll;
	var xScroll;
	
	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}
	
	if (self.pageXOffset) {
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollLeft){	 // Explorer 6 Strict
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {// all other Explorers
		xScroll = document.body.scrollLeft;
	}

	arrayPageScroll = new Array(xScroll,yScroll) 
	return arrayPageScroll;
}

function initLitebox(){
//overlay schirmfüllend und das div in die mitte packen
var arrayPageSize = getPageSize();
Element.setHeight('overlay', arrayPageSize[1]);

}

function displayLitebox(id) {
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();
	var lightboxDimensions = $(id).getDimensions();
	var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 2 - lightboxDimensions.height / 2);
	var lightboxLeft = arrayPageScroll[0] + (arrayPageSize[2] / 2 - lightboxDimensions.width / 2);
	if (lightboxTop < 10) {lightboxTop = 10;}
	if (lightboxLeft <10) {lightboxLeft = 10;}
	Element.setTop(id, lightboxTop);
	Element.setLeft(id, lightboxLeft);

	$('overlay', id).invoke('show');
}

function hideLitebox(id) {
	$('overlay', id).invoke('hide');
}

window.onload = function () {
	Fat.fade_all();
	initLitebox();
}