var useOpacity =
   (typeof document.createElement("div").style.opacity != 'undefined');
var useFilter = !useOpacity
   && (typeof document.createElement("div").style.filter != 'undefined');
if (useOpacity) var cOpacity= "1";
else if (useFilter) var cOpacity= "f";



function KillLinksIn (ID) {
	var aLinks = document.getElementById(ID).getElementsByTagName('a');
	for (var i = 0, cLink; cLink = aLinks[i]; i++) {
		cLink.href = "#";
	}
}

function MakeTransparent(ID) {
	var BildOben = document.getElementById(ID);
	if (cOpacity=="1") {
		BildOben.style.opacity = 0;
	} else if (cOpacity=="f") {
		BildOben.style.filter = "alpha(opacity=0)";
	}

}



function FadeIn(ID,step){
	var BildOben = document.getElementById(ID);
		
	step = step || 0;
	
	// fade in 
	if (cOpacity=="1") {
		BildOben.style.opacity = step/100;
	} else if (cOpacity=="f") {
		BildOben.style.filter = "alpha(opacity=" + step + ")";
	}
	step = step + 3;
	
	if (step <= 97) {
	// keep on fading
	   FadeIt = window.setTimeout("FadeIn('"+ID+"',"+step+")", 100);
	} else {
	// end of fading
				
	}
}

function ShowImage (BildNr) {
	var BildUnten = document.getElementById("b1");
	var TextUnten = document.getElementById("t1");
	var ClickedLink = "l"+(BildNr);
	var ActiveLink = gActiveLink;
	var BildPfad = gaFiles[BildNr];
	var cText = gaTexte[BildNr];
	// set stuff below to new content
	BildUnten.src = BildPfad;
	if (TextUnten) TextUnten.innerHTML= cText;
	
	// hide Link-Button for new (=selected) stuff
	document.getElementById(ClickedLink).style.display = "none";
	
	// show Link-Button for previous active stuff
	document.getElementById(ActiveLink).style.display = "Block";
	
	//update global store of active (=selected) stuff
	window.gActiveLink=ClickedLink;
	
	
	FadeIt = window.setTimeout("Fade2Image(gcBildnummern,0)", 15000);
}



function StopFade() {
	clearTimeout(FadeIt);
	var BildOben = document.getElementById("b2");
	var TextOben = document.getElementById("t2");
	var ActiveLink = gActiveLink;
	var ClickedLink =gClickedLink;
	//window.gcBildnummern = 0;
	
	
	if (cOpacity=="1") {
		BildOben.style.opacity = 0;
		if (TextOben) TextOben.style.opacity = 0;
		document.getElementById(ActiveLink).style.opacity = 1;
		document.getElementById(ClickedLink).style.opacity = 1;
	} else if (cOpacity=="f") {
		BildOben.style.filter = "alpha(opacity=0)";
		if (TextOben)TextOben.style.filter = "alpha(opacity=0)";
		document.getElementById(ActiveLink).style.filter = "alpha(opacity=100)";
		document.getElementById(ClickedLink).style.filter = "alpha(opacity=100)";
}
	
	
}



function toggleDisplay(ID){
    var it = document.getElementById(ID);
	if (it.style.display == '')  it.style.display = 'none';
	else it.style.display = '';
}

function HideIt(IDs){
	var aID=IDs.split(",");
	for (var i = 0; i < aID.length; i++){ 
	  document.getElementById(aID[i]).style.display = 'none';
	  document.getElementById(aID[i]).value = '';
	}
}

function ShowIt(IDs){
	var aID=IDs.split(",");
	for (var i = 0; i < aID.length; i++){ 
	  document.getElementById(aID[i]).style.display = '';
	}
}

function toggleDisplayN(name){
    var it = document.getElementByName(name);
	if (it.style.display == '')  it.style.display = 'none';
	else it.style.display = '';
}

function changeText(ID,cText){
    var it = document.getElementById(ID);
	
	it.innerHTML = cText;
}function showWindow (URL) {

 newWindow = open(URL,"","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=600,height=600");
	newWindow.focus ()

}function WertEinsetzen(Feld,Inhalt){    
//alert(Feld);
Feldreferenz=window.opener.document.getElementsByName(Feld)[0];

var i=0;
var Ergebnis=false;
for (i=0; i<Feldreferenz.options.length; i++) {
	
	if (Feldreferenz.options[i].value==Inhalt) {Ergebnis=true};
	// alert(Feldreferenz.options[i].value+Ergebnis+Inhalt);
}

if (Ergebnis==true) {
	window.opener.document.getElementsByName(Feld)[0].value=Inhalt;
    window.close();
    } else {
    	 alert ("Ihre Auswahl ist hier nicht zulässig. Wählen Sie einen anderen Datensatz.")
    }
}function setFocus(Feld) {
	var nLen, nCnt, nForm;
	nForm=0;
	//Feld="_login"
	if (Feld!='') {
		if (document.forms[0].elements[Feld]) {
			document.forms[0].elements[Feld].focus();
		}
	} else {
		if (document.forms[0]) {
			nLen = document.forms[nForm].elements.length;
			//document.forms[0].elements[1].focus();
			for (nCnt=0; nCnt<nLen; nCnt++) {
				if (document.forms[nForm].elements[nCnt].type != "submit") 
					{
					if (document.forms[nForm].elements[nCnt].type != "hidden") 
					{
						document.forms[nForm].elements[nCnt].focus();
						nCnt=nLen;
					}
				}
			}
		}
	}
}