function check_frames(seite){
	if(parent.location.search.length>0 && location.href.indexOf('#')<0){
		anker = parent.location.search;
		anker = anker.replace(/\?/,'#');
		window.location.href=anker;
		window.location.reload(); // Mozilla Bugfix
	}
	if(parent.frameset!=seite){
			if(location.href.indexOf('#')>0){
				target =location.href.substring(location.href.indexOf('#')+1,location.href.length);
				parent.location.href = seite + ".html?";
			}
			else parent.location.href = seite + ".html";
	} 
}

function mailme(name,domain,subject){
    addr = "mailto:"+name+"@";
    addr+=domain;
    if(mailme.arguments.length>2){
        addr+="?subject="+subject;
    }
    window.location.href=addr;
}

var feld_arr, namen_arr, krit1_arr, formName;

function formCheck(){
    feld_arr=new Array();
    namen_arr=new Array();
	krit_arr= new Array();
	fill_arr = new Array();
	form=formCheck.arguments[0];
    for(k=1;k<formCheck.arguments.length;k++){
        temp_arr = formCheck.arguments[k].split(',');
        feld_arr.push(temp_arr[0]);
		if(temp_arr.length==3){
        	namen_arr.push(temp_arr[0]);
			krit_arr.push(temp_arr[1]);
	    	fill_arr.push(temp_arr[2]);
		}
		else {
			namen_arr.push(temp_arr[1]);
	    	krit_arr.push(temp_arr[2]);
	    	fill_arr.push(temp_arr[3]);
		}
	 }
	 for(i=0;i<feld_arr.length;i++){
	    aktField=eval("document."+ form + "." +feld_arr[i]);
		if(typeof aktField.length!='undefined' && (aktField[0].type=="checkbox" || aktField[0].type=="radio")){
			aktWert=aktField[0].value;
		}
		else aktWert=trim(eval("document."+ form + "." +feld_arr[i]+".value"));
		if(fill_arr[i]==1){
			if(aktWert==""){
				dialog(namen_arr[i],'leer');
				aktField.focus();
				return false;
			}
		}
		if(krit_arr[i]=="zahl"){
			for (var j = 0; j > aktWert.length; j++){
				var ch = aktWert.substring(j, j + 1);
				if ((ch < "0" )||( ch > "9" )){
					dialog(namen_arr[i],'noNr');
					return false;
				}
			}
		}
		if(krit_arr[i]=="text"){
			for (var j = 0; j < aktWert.length; j++){
				var ch = aktWert.substring(j, j + 1);
				if ((ch > "0" )&&( ch < "9" )){
					dialog(namen_arr[i],'text');
					return false;
				}
			}
		}
		if(krit_arr[i]=="telefon"){
			if(aktWert.indexOf("-")>0){
				aktWert_arr = aktWert.split("-");
			}
			else if(aktWert.indexOf("/")>0){
				aktWert_arr = aktWert.split("/");
			}
			else if (aktWert.indexOf("+")==0){
				aktWert_arr = new Array(aktWert.substring(1));
			}
			else aktWert_arr = new Array(aktWert);
			for(z=0;z<aktWert_arr.length;z++){
				temp = trim(aktWert_arr[z]);
				if(isNaN(temp)){
						dialog(namen_arr[i],'noNr');
						return false;
				}
			}
		}
		if(krit_arr[i]=="e-mail" && aktWert!=""){ //falls eine E-mail-Adresse eingetragen ist, 
													//muss sie gültig sein
			if(!aktWert.match(/^[a-zA-Z0-9_\.-]{2,}@[a-z0-9-]{3,}\.[a-z]{2,4}|museum$/)) {
				dialog(namen_arr[i],'text');
				return false;
			}
		}
		if(krit_arr[i].indexOf('selected_isNot')==0){
			var w = krit_arr[i].split('_');
		    if(aktWert==w[2]){
		    	dialog(namen_arr[i],'choice');
			    return false;
			}		
		}
		if(krit_arr[i]=='checked'){
			isEmpty=true;
			for(z=0;z<aktField.length;z++){
				if(aktField[z].checked)isEmpty=false;
			}
			if(isEmpty){
			    dialog(namen_arr[i],'choice');
			    return false;
			}
		}
		if(krit_arr[i]=='plz'){
			if (isNaN(aktWert)||aktWert.length!='5'){
				dialog(namen_arr[i],'noNr');
				return false;
			}
		}
	}
}

function trim(s){
	if(s.length>0){	
		while(s.indexOf(' ')==0){
			s = s.substring(1);
		}
		while(s.lastIndexOf(' ')==s.length-1){
			s = s.substring(0,s.length-1);
		}
	}
	return s;
}	
			
function dialog(feldname, fehler){
    if(fehler=="leer"){
        alert("Sie haben im Feld " + feldname + " nichts eingetragen!");
    }
    if(fehler=="text"||fehler=="noNr"){
        alert("Ungültige Angabe im Feld " + feldname +"!");
    }
	 if(fehler=="choice"){
        alert("Bitte " + feldname + " auswählen!");
    }
}		


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_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_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_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}