function eingabefokus(id,status) {
	if(status=="aktiv") {
		document.getElementById(id).style.backgroundColor = '#FFFFFF';
		document.getElementById(id).style.border = '1px solid #A5A791';
		document.getElementById(id).style.color = '#000000';
	} else {
		document.getElementById(id).style.backgroundColor = '#F5F7EE';
		document.getElementById(id).style.border = '1px solid #CACCB3';
		document.getElementById(id).style.color = '#A5A791';
	}
}










function display(obj,auswahl,element1,element2) {
txt = obj.options[obj.selectedIndex].value;
document.getElementById(element1).style.visibility = 'hidden';
document.getElementById(element2).style.visibility = 'hidden';
if ( txt.match(auswahl) ) {
document.getElementById(element1).style.visibility = 'visible';
document.getElementById(element2).style.visibility = 'visible';
}
}

function display2(obj,auswahl,element) {
txt = obj.options[obj.selectedIndex].value;
document.getElementById(element).style.display = "none";
if ( txt.match(auswahl) ) {
document.getElementById(element).style.display = "block";
}
}


function modul_runter(modul) {
	document.getElementById(modul).style.paddingTop = "3px";
}
function modul_hoch(modul) {
	document.getElementById(modul).style.paddingTop = "0px";
}



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_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

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 farbe(id,farbe) {
	document.getElementById(id).style.backgroundColor = farbe;
}

function zeigobjekt(id1,id2) {
	objekt1 = document.getElementById(id1);
	objekt1.style.display = "block";
	objekt2 = document.getElementById(id2);
	objekt2.style.display = "block";
}
function versteckobjekt(id1,id2) {
	objekt1 = document.getElementById(id1);
	objekt1.style.display = "none";
	objekt2 = document.getElementById(id2);
	objekt2.style.display = "none";
}



function objekther(id) {
	objekt = document.getElementById(id);
	objekt.style.display = "block";
}
function objektweg(id) {
	objekt = document.getElementById(id);
	objekt.style.display = "none";
}



function objektsichtbar(id) {
	objekt = document.getElementById(id);
	objekt.style.visibility = "visible";
}
function objektunsichtbar(id) {
	objekt = document.getElementById(id);
	objekt.style.visibility = "hidden";
}




function aendernId(alteid,neueid) {
objekt = document.getElementById(alteid);
objekt.style.display = "block";
document.getElementById(alteid).id = neueid;
}


hinweis = null;	
document.onmousemove = updatehinweis;
function updatehinweis(e) {
	x = (document.all) ? window.event.x + document.body.scrollLeft : e.pageX;
	y = (document.all) ? window.event.y + document.body.scrollTop  : e.pageY;
	if (hinweis != null) {
		hinweis.style.left = (x - 100) + "px";
		hinweis.style.top 	= (y + 6) + "px";
	}
}
function zeighinweis(id) {
	hinweis = document.getElementById(id);
	hinweis.style.display = "block"
}
function versteckhinweis() {
	hinweis.style.display = "none";
}

function wiklichloeschen(nachfrage) {
	var ja=confirm(nachfrage);
	if (ja)
		return true ;
	else
		return false ;
}


function checkboxblock(checkbox,id,farbeakt,farbeinakt){
	checkb = document.getElementById(checkbox);
	//farbeinakt = document.getElementById(id).style.backgroundColor;
	if(checkb.checked){
	document.getElementById(id).style.backgroundColor = farbeakt;
	}
	else{
	document.getElementById(id).style.backgroundColor = farbeinakt;
	}
}


function checkboxurlbsem(checkbox,id1,id2){
	checkb = document.getElementById(checkbox);
	if(checkb.checked){
	document.getElementById(id1).style.display = "block";
	document.getElementById(id2).style.backgroundImage = 'url(images/hintergrund_VERWSTUD_Urlaubssemester.gif)';
	}
	else{
	document.getElementById(id1).style.display = "none"
	document.getElementById(id2).style.backgroundImage = ' ';
	}
}

var win = null;
function neuesfenster(mypage,myname,w,h,features) {
  var winl = (screen.width-w)/2;
  var wint = (screen.height-h)/2;
  if (winl < 0) winl = 0;
  if (wint < 0) wint = 0;
  var settings = 'height=' + h + ',';
  settings += 'width=' + w + ',';
  settings += 'top=' + wint + ',';
  settings += 'left=' + winl + ',';
  settings += features;
  win = window.open(mypage,myname,settings);
  win.window.focus();
}





//==================================================================================================================
//			CHIFFRIERUNGSFUNKTION
//==================================================================================================================

var chiffre = {
	// private property
	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
	// public method for encoding
	encode : function (input) {
		var output = "";
		var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
		var i = 0;
		input = chiffre._utf8_encode(input);
		while (i < input.length) {
			chr1 = input.charCodeAt(i++);
			chr2 = input.charCodeAt(i++);
			chr3 = input.charCodeAt(i++);
			enc1 = chr1 >> 2;
			enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
			enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
			enc4 = chr3 & 63;
			if (isNaN(chr2)) {
				enc3 = enc4 = 64;
			} else if (isNaN(chr3)) {
				enc4 = 64;
			}
			output = output +
			this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
			this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
		}
		return output;
	},
	// public method for decoding
	decode : function (input) {
		var output = "";
		var chr1, chr2, chr3;
		var enc1, enc2, enc3, enc4;
		var i = 0;
		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
		while (i < input.length) {
			enc1 = this._keyStr.indexOf(input.charAt(i++));
			enc2 = this._keyStr.indexOf(input.charAt(i++));
			enc3 = this._keyStr.indexOf(input.charAt(i++));
			enc4 = this._keyStr.indexOf(input.charAt(i++));
			chr1 = (enc1 << 2) | (enc2 >> 4);
			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
			chr3 = ((enc3 & 3) << 6) | enc4;
			output = output + String.fromCharCode(chr1);
			if (enc3 != 64) {
				output = output + String.fromCharCode(chr2);
			}
			if (enc4 != 64) {
				output = output + String.fromCharCode(chr3);
			}
		}
		output = chiffre._utf8_decode(output);
		return output;
	},
	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";

		for (var n = 0; n < string.length; n++) {

			var c = string.charCodeAt(n);

			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
		}
		return utftext;
	},
	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
		while ( i < utftext.length ) {
			c = utftext.charCodeAt(i);

			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
		}
		return string;
	}
}