/* hide this script from non-javascript-enabled browsers */ 
var hoch=(window.outerHeight)-425;
//alert (hoch);


clicked=null;


var clicked=false;
var oldlay=false;
var isIE,isNS=false; // bild zu sehen
var img=doclay=docstyle=hide=show=null;
document.onclick=clickHandle;
init();

function init() {
        if (document.all){
                doclay='document.all';
                docstyle='.style';
                hide="'hidden'";
                show="'visible'";
                isIE=true;
        }
        if (document.layers){
                doclay='document.layers';
                docstyle='';
                hide='hide';
                show='show';
                isNS=true;
				document.onmouseup;
				//window.captureEvents(EVENT.CLICK); funktioniert aber fehlermeldung in statuszeile
        }
}

function du(laynum){
		if ( document.getElementById("Layer"+laynum) != null ) {
		  document.getElementById("Layer"+laynum).style.visibility = "visible";
		}
		if(oldlay&&oldlay!=laynum) {
		  document.getElementById("Layer"+oldlay).style.visibility = "hidden";
		}
		oldlay=laynum;
}

function clickHandle(){
        if (document.images){
           if(oldlay) {
 document.getElementById("Layer"+oldlay).style.visibility = "hidden";
}
		   
           }
}



function preload(name,pfad,x){
	if (document.images){
	eval(name+"_F1=new Image();"+name+"_F1.src='"+pfad+"/"+name+".gif';");
	eval(name+"_F2=new Image();"+name+"_F2.src='"+pfad+"/"+name+"_F2.gif';");
	if(!x)eval(name+"_F3=new Image();"+name+"_F3.src='"+pfad+"/"+name+"_F3.gif';");
	}
}

function di(name,stat){
	if (document.images){
	if (stat!=3&&name!=geclicked) document.images[name].src=eval(name+'_F'+stat+'.src');
	if (stat==3){
		if (geclicked)document.images[geclicked].src=eval(geclicked+'_F1.src');
		geclicked=name;
		document.images[name].src=eval(name+'_F2.src');
	}
	}
}


function bi(col,name,stat){ //boemple switch
	if (document.images){
	if (stat!=3&&name!=geclicked) document.images[name].src=eval('cont_'+col+'_F'+stat+'.src');
	if (stat==3){
		if (geclicked)document.images[geclicked].src=eval('cont_'+col+'_F1.src');
		geclicked=name;
		document.images[name].src=eval('cont_'+col+'_F3.src');
	}
	}
}

function navitausch(punkt){
		parent.frames.navi.di(punkt,3);
		}

		
function pruefen(form) {
		leeresFeld = false;
        if (leeresFeld == false && FeldLeer(form.login) == true) {
                alert("Bitte tragen Sie Ihre Kennung ein.");
                leeresFeld = true;
        	}
		if (leeresFeld == false && FeldLeer(form.password) == true) {
                alert("Bitte tragen Sie Ihr Password ein.");
                leeresFeld = true;
        	}
		if (leeresFeld == false){
                alert(" Ihre Daten sind uns nicht bekannt."); 
                 return true;
        	}
        else return false;
}


function FeldLeer(feld) {
        if (feld.value == "" || feld.value == "Kennung" || feld.value == "Password")
                return true;
        else
                return false;
}		

// stop hiding -->