// JavaScript Document

var currentpos=0;
var currentthumbpos=0;
var moveamount=106;
var thumbnailnum;
var maxthumbvisible = 5; //Define how many thumbnails will be visible at one time in the thumbbox--for now this should only be 3 since it's actually the css that controls the size of the viewable box
var current_imgid=0;
var moving = false;
var finishedsizing=0;
var preloadimg="no"//Preload images ("yes" or "no"):
var myloadedimage = new Array();
     myloadedimage[0]=1;
var imggallery=new Array()
var firstimagestart=1;
var nextorprev=0;
var fadeout=1;

function areweready(loadarea, imgindex, img_id){
	if ( finishedsizing++ ) { 
		modifyimage(loadarea, imgindex, img_id);
		finishedsizing = 0;
	}
}

function modifyimage(loadarea, imgindex, img_id ){

			loadimagenow(loadarea, imgindex, img_id);

}

function loadimagenow(loadarea, imgindex, img_id){
	if (document.getElementById) {
			if(current_imgid!=img_id){
				
				if(imggallery[imgindex][9] == 2){
					var imgobj=document.getElementById(loadarea);
					var photonum=document.getElementById('photocount')
					var phototitle=document.getElementById('imgtitle')
					
					imgobj.innerHTML= '';
					
					if(myObj = document.getElementById('pn_overlay')){
						myObj.parentNode.removeChild(myObj);
						
					}
					
					imgobj.innerHTML=returnswfcode(imggallery[imgindex]);
					swfobject.removeSWF("swfobject");
					swfobject.embedSWF(imggallery[imgindex][0], "swfobject", imggallery[imgindex][1], imggallery[imgindex][2], "9.0.0");
					photonum.innerHTML=(Number(imgindex)+1)+" von "+imggallery.length;
					phototitle.innerHTML="<strong>"+tempgallery[img_id][4]+"</strong> "+tempgallery[img_id][7];
					initImage(loadarea);
					current_imgid=img_id;
					myloadedimage[imgindex]=1;	
				}else{
					var imgobj=document.getElementById(loadarea);
					var photonum=document.getElementById('photocount')
					var phototitle=document.getElementById('imgtitle')
				
					imgobj.innerHTML=returnimgcode(imggallery[imgindex]);
				
					photonum.innerHTML=(Number(imgindex)+1)+" von "+imggallery.length;
					phototitle.innerHTML="<strong>"+tempgallery[img_id][4]+"</strong> "+tempgallery[img_id][7];
					initImage(loadarea);
					current_imgid=img_id;
					myloadedimage[imgindex]=1;
				}
			}
		}
	return false
}

function returnimgcode(theimg){
	var imghtml=""
	if (theimg[1]!="")
		imghtml=''
	imghtml+='<img src="'+theimg[0]+'" border="0" id="'+theimg[8]+'" />'
	if (theimg[1]!="")
		imghtml+=''
	return imghtml
}

function returnswfcode(theimg){
	var swfhtml=""
	if (theimg[1]!="")
		imghtml=''
	swfhtml+='<div id="swfobject" border="0"/>'
	if (theimg[1]!="")
		swfhtml+=''
	return swfhtml
}



function initImage(imageId) {
	var fader = new Fx.Style(imageId,'opacity', {duration:fadespeed});
	fader.set(0);
	fader.start(0,1);
	var titlefade = new Fx.Style('imgtitle','opacity', {duration:transspeed });
		titlefade.set(0);
		titlefade.start(0,1);
}

function checkbutton(mynum){
	if ( mynum == 0 ) {
		mm_shl('back','hidden');
		mm_shl('more','visible');
	} else if ( mynum < thumbnailnum - maxthumbvisible ) {
		mm_shl('back','visible');
		mm_shl('more','visible');
	} else {
		mm_shl('back','visible');
		mm_shl('more','hidden');
	}
}


function mm_shl() { //v6.0
	var obj,args=arguments;
	if ((obj=MM_findObj(args[0]))!=null) {
		if (obj.style) {
			obj=obj.style;
		}
		obj.visibility=args[1];
	}
}


function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function addposition(addwidth){
	if ( !moving ) {
		 // if animagic is still moving the image..don't update the current position till it's done
		if(addwidth=="minus"){
			currentpos-=1;
			alert(currentpos);
		}else if(addwidth=="plus"){
			currentpos+=1;
		}
	}
	return currentpos;
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
	

// JavaScript Document
function initGallery ( tempgallery, count, first_id, startwidth, startheight, type ) {
	imggallery = tempgallery;
	if (preloadimg=="yes"){
		for (x=0; x<imggallery.length; x++){
			var myimage=new Image()
			myimage.src=imggallery[x][0]
		}
	}
	thumbnailnum = imggallery.length;
	current_imgid = first_id;
	currentwidth=startwidth;
	currentheight=startheight;
	
	window.onload=function(){loadfirstimage(type)}
}


	function getstarted(width, height, loadarea, imgindex, img_id, current_imgid, cwidth, cheight){
		checknext(img_id);

		if(current_imgid!=img_id){
			if(firstimagestart==1){
				//currentwidth=firstimagewidth;
				//currentheight=firstimageheight;
				currentwidth=cwidth;
				currentheight=cheight;
				firstimagestart=0;
	
			}
			if(nextorprev==1){
				currentwidth=cwidth;
				currentheight=cheight;
				nextorprev=0;
			}
			
			var resizeDivHeight = new Fx.Styles('main_image_wrapper',{duration:transspeed, onComplete: function(){loadimagenow(loadarea, imgindex, img_id);currentheight=height;currentwidth=width;} });
			var fader = new Fx.Style('imgloader','opacity', {duration:fadespeed, onComplete: function(){	resizeDivHeight.start({'height': [currentheight,height],'width': [currentwidth,width]});} });
			fader.start(1,0);	
			
			var titlefade = new Fx.Style('imgtitle','opacity', {duration:transspeed });
			titlefade.set(0);
			fadeout=0
			var linkfade = new Fx.Style('external_link','opacity', {duration:transspeed });
			linkfade.set(0);
			
			if(imggallery[imgindex][10] != ""){
				$('external_link').innerHTML = '<a href="'+imggallery[imgindex][10]+'" target="_blank">'+imggallery[imgindex][10]+'</a>';
				linkfade.start(0,1);
			}else{
				$('external_link').innerHTML ="";
			}
			


		}
		
	}
	function loadfirstimage(type){
		
		
		if(type == 2){

			var imgobj=document.getElementById('imgloader');
			
			imgobj.innerHTML=returnswfcode(imggallery[0]);
			
			swfobject.embedSWF(imggallery[0][0], "swfobject", imggallery[0][1], imggallery[0][2], "9.0.0", "expressInstall.swf");
			if(myObj = document.getElementById('pn_overlay')){
				myObj.parentNode.removeChild(myObj);
				
			}
			
		}
		else{
			var firstimageload = new Image();
			firstimageload.src = null;
			firstimageload.src = imggallery[0][0];

			var fadefirst = new Fx.Style('imgloader','opacity', {duration:fadespeed });
			fadefirst.set(0);
			var firsttitlefade = new Fx.Style('imgtitle','opacity', {duration:transspeed });
			firsttitlefade.set(0);
			var linkfade = new Fx.Style('external_link','opacity', {duration:transspeed });
			linkfade.set(0);
			if($('external_link') != ""){
				$('external_link').innerHTML = '<a href="'+imggallery[0][10]+'" target="_blank">'+imggallery[0][10]+'</a>'
				
			}
			
			var setfirstheight = new Fx.Style('main_image_wrapper','height',{duration:transspeed});
			var setfirstwidth =  new Fx.Style ('main_image_wrapper','width',{duration:transspeed});
			setfirstwidth.start(currentwidth,imggallery[0][1]);
			setfirstheight.start(currentheight,imggallery[0][2]);
			
				fadefirst.start(0,1);
				firsttitlefade.start(0,1);
				linkfade.start(0,1);
				currentheight=imggallery[0][2];
				currentwidth=imggallery[0][1];
		}
		
	}
	function nextimage(current_imgid){

		newimgid = Number(current_imgid)+1;
		newwidth =imggallery[newimgid][1]
		newheight =imggallery[newimgid][2]
		newimgindex =imggallery[newimgid][8]
		newimgid = imggallery[newimgid][8]
		cwidth=imggallery[current_imgid][1]
		cheight=imggallery[current_imgid][2]
		checknext(newimgid);
		nextorprev=1;
		getstarted(Number(newwidth), Number(newheight), 'imgloader',Number(newimgindex) ,Number(newimgid) , Number(current_imgid), Number(cwidth), Number(cheight))
	}

	function previmage(current_imgid){
		newimgid = Number(current_imgid)-1;
		newwidth =imggallery[newimgid][1]
		newheight =imggallery[newimgid][2]
		newimgindex =imggallery[newimgid][8]
		newimgid = imggallery[newimgid][8]
		cwidth=imggallery[current_imgid][1]
		cheight=imggallery[current_imgid][2]
		checknext(newimgid);
		nextorprev=1;
		getstarted(Number(newwidth), Number(newheight), 'imgloader',Number(newimgindex) ,Number(newimgid) , Number(current_imgid), Number(cwidth), Number(cheight))
	}
	
	function checknext(mynum){
		thumbmax=(Number(thumbnailnum)-1);
		if ( mynum < 1 ) {
			mm_shl('prev','hidden');
			mm_shl('next','visible');
		} else if ( mynum <  thumbmax ) {
			mm_shl('prev','visible');
			mm_shl('next','visible');
		} else {
			mm_shl('prev','visible');
			mm_shl('next','hidden');
		}
	}