// JavaScript Document

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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 MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


// altered by elp - to work with display CSS property
function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
 
	  if (obj.style) {
			  obj=obj.style; 
				 if (v=='show') {
				 obj.display = 'block'; 
				 } else {
				 obj.display = 'none'; 
				 }
  	}
  }
}


   // write hide - show button - for admin contentblock
	function writeRedExp(divId, ctrldiv) {
		var clayer = document.getElementById(ctrldiv);
		var content = '';
	    var divContent = document.getElementById(divId);
	    var divId = divId;
	    var ctrldiv = ctrldiv;
	
		if (divContent.style.display != 'block') {
			content += '<a href="javascript:void(0);"';
			content += ' onClick="MM_showHideLayers(\''+divId+'\',\'\',\'show\'); writeRedExp(\''+divId+'\',\''+ctrldiv+'\'); ">';
			content += '[ ÖFFNEN ]</a>';
		} else if (divContent.style.display != 'none') {
		    content += '<a href="javascript:void(0);"';
			content += 'onClick="MM_showHideLayers(\''+divId+'\',\'\',\'hide\'); writeRedExp(\''+divId+'\',\''+ctrldiv+'\');  ">';
			content += '[ SCHLIESSEN ]</a>';
		}
		clayer.innerHTML = content;
	}
	
	function setClass(element, classname) {
		var myRegexp = new RegExp('\\b' + classname + '\\b');
		if ( element.className == "") {
			element.className = classname;
		} else if (myRegexp.test(element.className)) {
			element.className = element.className.replace(myRegexp, '');
		} else {
			element.className = element.className + " " + classname;
		}
	}
	
	function toggleLayers(parentID, childID) {
		
		var list = document.getElementById(parentID);
		var children = list.childNodes;
		
		/*alert(parentID);
		alert(children.length);*/
		
		for(i=0;i<children.length;i++) {
			child = children[i];
			
			if (child.nodeName == "DIV") {			
				actChild = child.getAttribute('id');
				//newChild = actChild.substr(2);
				newChild = actChild;
				
				if(actChild == childID) {
					child.style.display = 'block';
					//document.getElementById('t_'+newChild).className = newChild+' active';
					document.getElementById('t_'+newChild).parentNode.className = 'archivtabs active';
				} else {
					child.style.display = 'none';
					//document.getElementById('t_'+newChild).className = newChild;
					document.getElementById('t_'+newChild).parentNode.className = 'archivtabs';
				}
			}
		}
	}
	
	function setYear(elem, ftyp) {
		var url = "filter.php?elem="+elem;
		new Ajax.Request(url,
		 {
		 	method:"get",
		 	onComplete:function(xhr){
				$('dropBox'+ftyp+'Span').innerHTML = ftyp+" "+elem;
				$('exhibition').innerHTML = xhr.responseText;
				toggleLayers('auswahlcontent','exhibition'); // wenn artist aktiv ist, man aber ein jahr auswählt
		 	}
		 });
	}
	
	function setActiveTab(activeTab) {
		var url = "activeTab.php?activeTab="+activeTab;
		new Ajax.Request(url, { method:"get" });
	}