/* --- G A L L E R Y --- */

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_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; 
		v=(v=='show')?'block':(v=='hide')?'none':v;
	}
    obj.display=v; }
}


function onloadCode() {
	//T3_onloadWrapper();
	doBlackLayer();
}


function detectMacXFF() {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf("mac") != -1 && userAgent.indexOf("firefox")!=-1) {
	return true;
  }
}

function doBlackLayer() {
  var blackLayer = document.getElementById("black_layer");
  var d = detectMacXFF();
  if (d) {
	blackLayer.style.backgroundImage= "url(fileadmin/xbowpress/images/black.png)";
	blackLayer.style.backgroundRepeat="repeat";
  } else {
	blackLayer.style.backgroundColor = "#000000";
	blackLayer.style.MozOpacity = .80;
	blackLayer.style.opacity = .80;
	blackLayer.style.filter = "alpha(opacity=80)";
  }
}

var curi = 0;

function showbig(i){
	curi = i;
	MM_showHideLayers('pic_layer_'+i,'','show','black_layer','','show');
	var objp = MM_findObj('pic_layer_'+(i-1));
	if(objp){
		MM_showHideLayers('prev_layer','','show');
	}else{
		MM_showHideLayers('prev_layer','','hide');
	}
	var objn = MM_findObj('pic_layer_'+(i+1));
	if(objn){
		MM_showHideLayers('next_layer','','show');
	}else{
		MM_showHideLayers('next_layer','','hide');
	}
}
function getUppa(){
	MM_showHideLayers('pic_layer_'+curi,'','hide');
	showbig(curi+1)
}
function getDown(){
	MM_showHideLayers('pic_layer_'+curi,'','hide');
	showbig(curi-1)
}
function baba(i){
	MM_showHideLayers('pic_layer_'+i,'','hide','black_layer','','hide','prev_layer','','hide','next_layer','','hide')
}


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_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_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];}
}

function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}


function check_form(countIt,type) {
	var ok = new Array();
	
	for (var k=0; k<countIt; k++) {
		var radio = eval('document.formular.alternativeDate'+k);
		ok[k]=false;
		for(var i=0;radio[i];i++) {
			if (radio[i].checked) {
				ok[k]=true;
			}
		}
	}
	
	retVal = true;
	
	for (var j=0; j<countIt; j++) {
		if (ok[j] == false) {
			retVal = false;
		}
	}
	if (type==1) {
		text = "Please select all dates"; 
	} else {
		text = "Bitte wählen Sie für jeden Termin Ihre gewünschte Option aus!";	
	}
	if (!retVal) alert (text);
	
	return retVal;
}