function checkFieldsContact() {
	
		var requiredFields = 6; // Anzahl nötiger Felder
		var required = new Array(requiredFields);
		 required[0] = 'Anrede';
		 required[1] = 'Vorname';
		 required[2] = 'Nachname';
		 required[3] = 'Telefon';
		 required[4] = 'Telefon';
		 required[5] = 'Mitteilung';

		var error = 0;
		var x = 0; 
		for (x = 0; x < requiredFields; x++) 
		{ 
			if(document.getElementById(required[x]).value == "") {
				document.getElementById('div'+required[x]).innerHTML = '<font color="red">Bitte ausfüllen!</font>';
				error = 1;
			}	
			else {
				document.getElementById('div'+required[x]).innerHTML = '';
			}
		} 	
		
		if(error == 0) {
			return true;
		}
		else {
			return false;
		}
	}




function toggle(objekt) {
	if(document.getElementById(objekt).style.display == "none") {
		document.getElementById(objekt).style.display = "block";
	}
	else {
		document.getElementById(objekt).style.display = "none";
	}
}

function toggleMinimize(idDiv,idImg) {
	if(document.getElementById(idDiv).style.display == "none") {
		document.getElementById(idDiv).style.display = "block";
		document.getElementById(idImg).src = "images/minimize.gif";
	}
	else {
		document.getElementById(idDiv).style.display = "none";
		document.getElementById(idImg).src = "images/maximize.gif";
	}
}

function show(objekt) {
	document.getElementById(objekt).style.display = "block";
}

function hide(objekt) {
	document.getElementById(objekt).style.display = "none";
}



function fillInput(objekt,value) {
	document.getElementById(objekt).value = value;
}

function setWindowFocus() {
	window.focus();
}


function AdImagePreview() {
	var imagepath = 'images/user/';
	var filename  = document.getElementById('filename').innerHTML;		
	var filenameM = document.getElementById('filenameM').innerHTML;		
	opener.document.forms['form'].elements['AImage'].value 	= filename; 
	opener.document.getElementById('adimgpreview').src 		= imagepath + filenameM;
	opener.document.getElementById('deleteImage').style.display	= "inline";
}

function AdImagePreviewDelete() {
	var imagepath = 'images/common/';
	var filename = 	"blank.gif";		
	document.forms['form'].elements['AImage'].value 	= ''; 
	document.getElementById('adimgpreview').src 		= imagepath + filename;
	document.getElementById('deleteImage').style.display= "none";
}
	
	
var Fenster = null;
function imagepopup(path, w, h) {
	//w = 650;
	//h = 490;

	myPage = "bild_popup.php?image="+path+"&h="+h+"&w="+w;
	
	LeftPosition = (screen.width) ? (screen.width-w) / 2 : 0;
	TopPosition = (screen.height) ? (screen.height-h) / 2 : 0;
	settings = 	'status=no,resizable=no,height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=no,';
	Fenster = window.open(myPage, 'PopUp', settings);
}



var Fenster = null;
function pic(picnbr) {
	w = 650;
	h = 490;

	myPage = "bilder_popup.php?id="+picnbr;
	
	LeftPosition = (screen.width) ? (screen.width-w) / 2 : 0;
	TopPosition = (screen.height) ? (screen.height-h) / 2 : 0;
	settings = 	'status=yes,resizable=yes,height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,';
	Fenster = window.open(myPage, 'PopUp', settings);
}

var Fenster = null;
function mypopup(myPage,w,h,status,resizable,scrollbars) {
	
	LeftPosition = (screen.width) ? (screen.width-w) / 2 : 0;
	TopPosition = (screen.height) ? (screen.height-h) / 2 : 0;
	settings = 	'status='+status+',resizable='+resizable+',height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scrollbars+',';
	Fenster = window.open(myPage, 'PopUp', settings);
}




function toggleCheckbox(objectname) {
	if(document.getElementById(objectname).checked == true) {
		document.getElementById(objectname).checked = false;
	}
	else {
		document.getElementById(objectname).checked = true;
	}
}



var activeDuration;
var firsttime;
activeDuration = 12;
firsttime = 1;

function modifyTopAdDuration(maxPackets) {
	setWindowFocus();
	
	var selPacket;
	selPacket = document.getElementById("FKPacketNb").value;	
	
	
	if(selPacket == 0) {
		selPacket = 0;
		document.getElementById("ATopAd12").style.display = "none";
	}
	else {
		document.getElementById("ATopAd"+activeDuration).style.display = "none";
	}
	
	if(firsttime == 1) {
		firsttime = 0;
		document.getElementById("ATopAd12").style.display = "none";		
	}
	else {
		document.getElementById("ATopAd"+activeDuration).style.display = "none";		
	}
	
	// Show selected Packet
	document.getElementById("ATopAd"+selPacket).style.display = "block";
	activeDuration = selPacket;
}


// Mainmenu Functions
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];}
}