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();
}
MM_reloadPage(true);

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_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_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];}
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,name,num,min,max,errors='',args=MM_validateForm.arguments;
  var d,ele;
d=document;
  //alert("Teste Werte");
   
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; name =args[i+1]; val=MM_findObj(args[i]);
  if (!name) { name=val.name;};
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+name+' muss eine E-Mail-Adresse sein.\n';
      } else if (test!='R') {
        if (isNaN(val)) errors+='- '+name+' muss eine Zahl sein.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (val<min || max<val) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+name+'\n'; }
  }
  if (errors) alert('Bitte überprüfen Sie Ihre Angaben:\n'+errors);
    
  document.MM_returnValue = (errors == '');
}

function keyPressed(e) {
    var key;
    if (window.event) key = window.event.keyCode
    else if (e) key = e.which
    return key;
}

function login(form_id){
	var form = $(form_id);
	if(form.username.value == '' || form.password.value == ''){
		alert("Bitte geben Sie Login-Kennung und Passwort an.");
		return;
	}
	form.submit();
}

function check_if_logged_in(){
	var on_complete = function(transport){  };
	var on_excpetion = function(obj, exception){ is_logged_in = 0; };
	
	var para = {action: 'is_logged_in'};
	
	ajax_load('/index.pl', para, on_complete, on_excpetion);
}

function ajax_load(url, para, on_complete, on_exception){
	
	para['rand'] = Math.random();
	
	var myAjax = new Ajax.Request(url, {
		method: 'get',
		parameters: para,
		onComplete: on_complete,
		onException: on_exception
		}
	);
}

function delete_upload(id) {
	if(confirm(unescape("Wollen Sie die Datei wirklich l%F6schen%3F"))){
		document.forms['update_upload'].delete_ul.value = 1;
		document.forms['update_upload'].submit();
	}
}