var ns4 = (document.layers)? true:false;
var ie4 = (document.all)? true:false;
if(navigator.appVersion.substring(0,1) == "5" && navigator.appName == 'Netscape') {
//alert(navigator.appVersion);
        var ns5 = true;
        //alert('NS5');
}

function show(id) {
		if (ns4) {document.layers[id].visibility = "show";
		id2=id;
		run=setTimeout("hide(id2)",3000);}
		else if (ie4) {document.all[id].style.visibility = "visible";}
		else if (ns5) {document.getElementById(id).style.visibility = 'visible';}
		
	}
function hide(id) {
		 if (ns4) {document.layers[id].visibility = "hide";}
         else if (ie4) {document.all[id].style.visibility = "hidden";}
		 else if (ns5) {document.getElementById(id).style.visibility = 'hidden';};
		 }

// Status Anzeige
var stxt='';	// Mit 'stxt'  kann im Document ein Wert zur Anzeige in der Stuszeile vorgegeben werden.

function puts(txt){
			if (txt == null){
         window.status=stxt;
         }else
         {
         window.status=txt;
         }
         return;
	}

function nix(){
}

// get_query gibt als Ergebnis den Wert eines Arguments zurück
// www.web.de/index.html?name=Wert&name=Wert

function get_query(name) {
    var value=null;
    var query=window.location.search;
    if(query != "") {
      var kk=query.indexOf(name+"=");
      if(kk >= 0) {
        kk=kk+name.length+1;
        var ll=query.indexOf("&", kk);
        if(ll < 0)ll=query.length;
        value=query.substring(kk, ll);
        for(kk=0; kk<value.length; kk++) {
          if(value.charAt(kk) == '+') {
            value=value.substring(0, kk)+" "+value.substring(kk+1,value.length);
          }
        }
        value=unescape(value);
      }
    }
    return value;
}

function show_display(obj) {
	if (ns4) {document.layers[obj].display = "";}
	else if (ie4) {document.all[obj].style.display = "";}
	else if (ns5) {document.getElementById(obj).style.display = "";}
    return;
}
function hide_display(obj) {
	if (ns4) {document.layers[obj].display = "none";}
	else if (ie4) {document.all[obj].style.display = "none";}
	else if (ns5) {document.getElementById(obj).style.display = "none";}
    return;
}