var img_url_array = new Array(); // js-Array zur Aufnahme der Dateinamen der Bilder welche per Preload behandelt werden sollen
img_url_array.push("../leistung/logo");img_url_array.push("../leistung/stift3-o.jpg");img_url_array.push("../leistung/1start.jpg");img_url_array.push("../leistung/stift3-u.jpg");img_url_array.push("../leistung/W06-m.jpg");img_url_array.push("../leistung/stuhl-m.jpg");img_url_array.push("../leistung/W06-o.jpg");img_url_array.push("../leistung/stuhl-o.jpg");img_url_array.push("../leistung/akte3-m.jpg");img_url_array.push("../leistung/stuhl-u.jpg");img_url_array.push("../leistung/akte3-o.jpg");img_url_array.push("../leistung/stuhl2-m.jpg");img_url_array.push("../leistung/akte3-u.jpg");img_url_array.push("../leistung/stuhl2-o.jpg");img_url_array.push("../leistung/anfahrt-f.gif");img_url_array.push("../leistung/stuhl2-u.jpg");img_url_array.push("../leistung/anfahrt1.gif");img_url_array.push("../leistung/tel1-m.jpg");img_url_array.push("../leistung/anfahrt2.gif");img_url_array.push("../leistung/tel1-o.jpg");img_url_array.push("../leistung/bueg2-m.jpg");img_url_array.push("../leistung/tel1-u.jpg");img_url_array.push("../leistung/bueg2-o.jpg");img_url_array.push("../leistung/topf-m.jpg");img_url_array.push("../leistung/bueg2-u.jpg");img_url_array.push("../leistung/topf-o.jpg");img_url_array.push("../leistung/cont1-m.jpg");img_url_array.push("../leistung/topf-u.jpg");img_url_array.push("../leistung/cont1-o.jpg");img_url_array.push("../leistung/waage_m.jpg");img_url_array.push("../leistung/cont1-u.jpg");img_url_array.push("../leistung/get_adobe_reader.gif");img_url_array.push("../leistung/waage_m.jpg.LCK");img_url_array.push("../leistung/keks-m.jpg");img_url_array.push("../leistung/schild1-o.jpg");img_url_array.push("../leistung/keks-m.jpg.LCK");img_url_array.push("../leistung/waage_o.jpg");img_url_array.push("../leistung/keks-o.jpg");img_url_array.push("../leistung/schild1-u.jpg");img_url_array.push("../leistung/keks-o.jpg.LCK");img_url_array.push("../leistung/waage_o.jpg.LCK");img_url_array.push("../leistung/keks-u.jpg");img_url_array.push("../leistung/spacer.gif");img_url_array.push("../leistung/keks-u.jpg.LCK");img_url_array.push("../leistung/waage_u.jpg");img_url_array.push("../leistung/logo-g.gif");img_url_array.push("../leistung/waage_u.jpg.LCK");img_url_array.push("../leistung/mac2-m.jpg");img_url_array.push("../leistung/mac2-o.jpg");img_url_array.push("../leistung/mac2-u.jpg");img_url_array.push("../leistung/mac4-m.jpg");img_url_array.push("../leistung/mac4-o.jpg");img_url_array.push("../leistung/mac4-u.jpg");img_url_array.push("../leistung/mac5-m.jpg");img_url_array.push("../leistung/mac5-o.jpg");img_url_array.push("../leistung/mac5-u.jpg");img_url_array.push("../leistung/map1-m.jpg");img_url_array.push("../leistung/map1-o.jpg");img_url_array.push("../leistung/map1-u.jpg");img_url_array.push("../leistung/maus1-m.jpg");img_url_array.push("../leistung/maus1-o.jpg");img_url_array.push("../leistung/maus1-u.jpg");img_url_array.push("../leistung/netz3-m.jpg");img_url_array.push("../leistung/netz3-o.jpg");img_url_array.push("../leistung/netz3-u.jpg");img_url_array.push("../leistung/orang1-m.jpg");img_url_array.push("../leistung/orang1-o.jpg");img_url_array.push("../leistung/orang1-u.jpg");img_url_array.push("../leistung/orang2-m.jpg");img_url_array.push("../leistung/orang2-o.jpg");img_url_array.push("../leistung/orang2-u.jpg");img_url_array.push("../leistung/orang3-m.jpg");img_url_array.push("../leistung/orang3-o.jpg");img_url_array.push("../leistung/orang3-u.jpg");img_url_array.push("../leistung/ordner1-m.jpg");img_url_array.push("../leistung/ordner1-o.jpg");img_url_array.push("../leistung/ordner1-u.jpg");img_url_array.push("../leistung/pdficon.gif");img_url_array.push("../leistung/pinsel1-m.jpg");img_url_array.push("../leistung/pinsel1-o.jpg");img_url_array.push("../leistung/pinsel1-u.jpg");img_url_array.push("../leistung/schal1-m.jpg");img_url_array.push("../leistung/schal1-o.jpg");img_url_array.push("../leistung/schal1-u.jpg");img_url_array.push("../leistung/schild1-m.jpg");img_url_array.push("../leistung/stem1-m.jpg");img_url_array.push("../leistung/stem1-o.jpg");img_url_array.push("../leistung/stem1-u.jpg");img_url_array.push("../leistung/stem3-m.jpg");img_url_array.push("../leistung/stem3-o.jpg");img_url_array.push("../leistung/stem3-u.jpg");img_url_array.push("../leistung/stift2-m.jpg");img_url_array.push("../leistung/stift2-o.jpg");img_url_array.push("../leistung/stift2-u.jpg");img_url_array.push("../leistung/stift3-m.jpg");// --- needs dhtml.js for: NS, OP, DHTML, DOM
var img_chg_amount = img_url_array.length; // Anzahl der Image-Dateien

var imgarray;              //receive the image-objects
var img_status_array;      //receive the state of each image-object
var img_error_state_array; //receive the error-state of each image-object
var handler_array;         //receive the onload-handler
var error_handler_array;   //receive the error-handler
var load_status_signal;    //if "loading.." is shown 1 else 0
var called_image;          //receive the called image
var globaleTimerVariable = null; //reset the timeout
var remember_text = -1;          //receive the shown text
var remember_fash = -1;          //receive whether the flash was switched or not

//-- START: init - wird am ende der Datei aufgerufen und initialisiert die js-Variablen
function init_img_change(){
	imgarray              = new Array(img_chg_amount); //img_chg_amount wird oben initialisiert
	img_status_array      = new Array(img_chg_amount); //receive the load-state of each image-object
	img_error_state_array = new Array(img_chg_amount); //receive the error-state of each image-object
	handler_array         = new Array(img_chg_amount); //receive the onload-handler
	error_handler_array   = new Array(img_chg_amount); //receive the error-handler
	
	load_status_signal =  0; // flag, indicates wether "loading..." is visible
	called_image       = -1; //receive the called image
	//default content for the img_status_array and img_error_state_array
	for (var counter = 0; counter < img_chg_amount; counter++){
		img_status_array[counter] = false;
		img_error_state_array[counter] = false;
	}
	//onload-handler
	for (var counter = 0; counter < img_chg_amount; counter++){
		eval("handler_array[" + counter + "] = function(){img_status_array[" + counter + "] = true;}");
	}
	//onerror-handler
	for (var counter = 0; counter < img_chg_amount; counter++){
		eval("error_handler_array[" + counter + "] = function(){img_status_array[" + counter + "] = true;img_error_state_array[" + counter + "] = true;}");
	}
	//make image-objects
	for (var counter = 0; counter < img_chg_amount; counter++){
		imgarray[counter] = new Image();
		eval("imgarray[" + counter + "].onload = handler_array[" + counter +"];"); //onloadhandler
		eval("imgarray[" + counter + "].onerror = error_handler_array[" + counter +"];"); //error-handler
	}
}
//-- END: init

//-- begin functions
//is called, if the called image is not already loaded, tests each x-milliseconds the state
function change_on_state(num){
	var state = test_state(num); 
	if(num == called_image){ //only if the user is still on the same item
		if(state == true){
			img_change(num);
		}
		else window.setTimeout('change_on_state('+num+')',50);
	}
}
// determine if the image with the number num is already loaded
function test_state(num){
	var state = false;
	if(OP && DOM && DHTML)
		state = imgarray[num].complete; // just for Opera
	else
		state = img_status_array[num];	// all other browsers
	return state;
}
// function to check wheater the image has an onloaderror
function check_error_state(pic){
	if(OP && DOM && DHTML){
		return false;
	} else {
		return img_error_state_array[pic];
	}
}
// change the images
// called on mouseover
function img_change(pic){
	if (loadStatus==null || !loadStatus.isObject()) loadStatus = new eMBLayer("loadstatus");
	if(remember_fash == -1){
    switchFlash(false); // hide default flash animation
    remember_fash = 1;
  }
	(new eMBLayer("previewimg")).show();
	(new eMBLayer("ienoflashjpg")).hide();//noflash-handling
	(new eMBLayer("pluginmessage")).hide();
	called_image = pic;
	var state = test_state(pic);
	if (check_error_state(pic) == true){ // shows error-message if onload-error is occured
		loadStatus.hide();
		(new eMBLayer("errorstatus")).show();
	} else {
		(new eMBLayer("errorstatus")).hide();
		if (state == true){
			//change the image source
			if(NS) {
				var layerObject = getLayerById("previewimg");
				if (!layerObject) return true;
				layerObject.document.images['chg_img'].src = imgarray[pic].src;
			} else
				document.chg_img.src = imgarray[pic].src;
			// hide "loading..." if visible
			if(load_status_signal == 1){
				loadStatus.hide();
				load_status_signal = 0;
			}
		} else {// image not already loaded
			loadStatus.show(); //show load_status_signal
			load_status_signal = 1; 
			img_change_direct(pic); // now load directly next image
			//change_on_state(pic); // change image source
		}
	}
}
// function to change the image direct
// has no direct impact on timer controlled loading
var loadStatus=null;
function img_change_direct(pic){
	if (loadStatus==null || !loadStatus.isObject()) loadStatus = new eMBLayer("loadstatus");
		eval("directHandler = function(){img_status_array[" + pic + "] = true;imgarray[" + pic + "].src = img_url_array[" + pic + "];if(load_status_signal == 1){loadStatus.hide();load_status_signal = 0;}}");
		var imageHolder = new Image();
		imageHolder.onload = directHandler;
		imageHolder.src = img_url_array[pic];
		if(OP && DOM && DHTML)
			imageHolder.complete = loadStatus.hide();
		//change the image source
		if(NS) {
			var layerObject = getLayerById("previewimg");
			if (!layerObject) return true;
				layerObject.document.images['chg_img'].src = img_url_array[pic];
		} else
	document.chg_img.src = img_url_array[pic];
}
// function to change the text
// called on mouseover
var allShowroomTextsLayers = null;
function text_change(nr){
	if ( allShowroomTextsLayers == null || !allShowroomTextsLayers[img_chg_amount-1].isObject()){
		allShowroomTextsLayers = new Array(img_chg_amount);
		for(var i=0; i<img_chg_amount; i++){
			allShowroomTextsLayers[i] = new eMBLayer("text"+i);
		}
	}
	if(remember_text == -1){
		for(var i=0; iimg_chg_amount; i++){
			allShowroomTextsLayers[i].hide();
		}
	} else if(remember_text != -1){
		allShowroomTextsLayers[remember_text].hide();
	}
	allShowroomTextsLayers[nr].show();
	rememeber_text = nr;
}
// load the image
// has to be called first time by onload event in body of html-file onload="load_images(0);"
function load_images(num){
	imgarray[num].src = img_url_array[num]; // load image, img_url_array contains filename
	if(num < (img_chg_amount-1))
		next_src(num);
}
// nex_src waits until picture num has been loaded, while waiting it iterates by calling itself with a timer
function next_src(num){
	if(test_state(num) == true)
		load_images(num+1); // next image is just loaded if image before had been successfully loaded
	else{
		clearTimeout(globaleTimerVariable);
		globaleTimerVariable = setTimeout("next_src("+num+")", 50);
	}
}
// function to show/hide default flash animation
function switchFlash(show){
 var defaultAnimation = new eMBLayer("defaultanim");
 if (show==false) {
		if(MAC && MS){
			defaultAnimation.object.innerHTML="";
		} 
		defaultAnimation.hide();
		defaultAnimation.setY( -500 );
    
 }
}
var nowOver=0;
function checkRolloutReady() {
	if (nowOver==0) {
		img_change(0);
		text_change(0);
	}
}
// funciton called on mouseover / mouseout
function changePreview(num) {
	if(num==0) { 
		img_change(num); 
		text_change(num);	
	} else {
		nowOver=num;
		img_change(num); 
		text_change(num);
	}
}
init_img_change();

var oldArrow = '';

function swapArrow(imgName, state, layerId){//Bildwechsel	
	if (oldArrow != '')
	  swapImage(oldArrow, arrowImg[0], layerId);
	oldArrow = imgName;
	swapImage(imgName, arrowImg[1], layerId);
}