/* Formularkontrolle __________________________________*/

var benutzerpflicht = '';
var passwortpflicht = '';
var textpflicht = '';
var textemail = '';
var texthinweis = '';
var textdatum = '';
var textpasswort = '';

var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) 
        return false;
    }
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}

function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) { 
			this[i] = 30 
		}
		if (i==2) { 
			this[i] = 29 }
   } 
   return this
}

function isDate(day, month, jear){
	var dtStr = month + '/' + day + '/' + jear;
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)

	if (strMonth.length<1 || month<1 || month>12){
		//alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		//alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date")
		return false
	}
return true
}

/*
function checkpassword(pws1, pws2){
	if (pws1 == pws2){
		if(pws1.length > 5){
			return true;
		}
	}
	return false;
}
*/

	
function kontrolle(sFormular) {
	var i, feld, alle = 1;
	
	for(i = 1; i < kontrolle.arguments.length; i++) {
	
		feld = kontrolle.arguments[i];
		
		if (feld == 'AlterD'){
			if (document[sFormular]['AlterD'].value != '' && document[sFormular]['AlterM'].value != '' && document[sFormular]['AlterJ'].value != ''){
				if ( isDate(document[sFormular]['AlterD'].value, document[sFormular]['AlterM'].value, document[sFormular]['AlterJ'].value) == false){
					document[sFormular]['AlterD'].style.color = farbefehlt;
					document[sFormular]['AlterD'].style.border = '1px solid ' + farbefehlt;				
					document[sFormular]['AlterM'].style.color = farbefehlt;
					document[sFormular]['AlterM'].style.border = '1px solid ' + farbefehlt;				
					document[sFormular]['AlterJ'].style.color = farbefehlt;
					document[sFormular]['AlterJ'].style.border = '1px solid ' + farbefehlt;
					alert(textdatum);
					return;
				}
			}
		}
		
		if (feld == 'Passwort'){
			if (document[sFormular]['Passwort'].value != '' && document[sFormular]['Passwortbestaetigen'].value != ''){
				//if (checkpassword(document[sFormular]['Passwort'].value, document[sFormular]['Passwortbestaetigen'].value) == false){
				if (document[sFormular]['Passwort'].value.length < 6 && document[sFormular]['Passwortbestaetigen'].value.length < 6){
					document[sFormular]['Passwort'].value = '';			
					document[sFormular]['Passwort'].style.color = farbefehlt;
					document[sFormular]['Passwort'].style.border = '1px solid ' + farbefehlt;			
					document[sFormular]['Passwortbestaetigen'].value = '';			
					document[sFormular]['Passwortbestaetigen'].style.color = farbefehlt;
					document[sFormular]['Passwortbestaetigen'].style.border = '1px solid ' + farbefehlt;
					alert(textpasswort);
					return;
				}
			}
		}
		
		if (feld == 'Privacy') {
			
			if (!document[sFormular].Privacy.checked) {
				alert(textprivacy);
				return;
			}
		}
		else {
		
			if (Trim(document[sFormular][feld].value) == '' || document[sFormular][feld].value == textpflicht || document[sFormular][feld].value == benutzerpflicht || document[sFormular][feld].value == passwortpflicht ) {
				if (feld == 'Passwort' || feld == 'Passwortbestaetigen' || feld == 'AlterD' || feld == 'AlterM' || feld == 'AlterJ' ) {
					document[sFormular][feld].value = '';
				} else {
					document[sFormular][feld].value = textpflicht;			
				}
				document[sFormular][feld].style.color = farbefehlt;
				document[sFormular][feld].style.border = '1px solid ' + farbefehlt;
				alle = 0;
			}
			else {
				document[sFormular][feld].style.color = farbeeingabe;
				document[sFormular][feld].style.border = '1px solid ' + farberahmen;
				
				if (feld == 'Email') {
					
					if (IsEmail(document[sFormular][feld].value) == false) {
						document[sFormular][feld].style.color = farbefehlt;
						document[sFormular][feld].style.border = '1px solid ' + farbefehlt;
						alert(textemail);
						return;
					}
				}
			}
		}
	}
		
	if (alle == 0) {
		alert(texthinweis);
		return;
	}
	else {
		document[sFormular].submit();
	}
}



/* Formular faerben ___________________________________*/

var k = 0;
eingabe = new Array();

function loeschen(ort) {
	var i, j = 0;
	
	for(i = 0; i < eingabe.length; i++) {
		if (eingabe[i] == ort) {
			j = 1;
		}
	}
	
	if (j == 0) {
		eingabe[k] = ort;
		eingabe.push();
		k = k + 1;
		document.getElementById(ort).value = '';
		document.getElementById(ort).style.color = farbeeingabe;
		document.getElementById(ort).style.border = '1px solid ' + farberahmen;
		return false;
	}
}



/* Stringcheck ________________________________________*/

function LTrim(str)	{
	var whitespace = new String(" \t\n\r");
	var s = new String(str);

	if (whitespace.indexOf(s.charAt(0)) != -1) {
		var j=0, i = s.length;
		while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
			j++;
            s = s.substring(j, i);
	}
	return s;
}


function RTrim(str)	{
	var whitespace = new String(" \t\n\r");
	var s = new String(str);

	if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
		var i = s.length - 1;       // Get length of string
		while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
			i--;
			s = s.substring(0, i+1);
	}
	return s;
}


function Trim(str) {
	return RTrim(LTrim(str));
}


/* Emailcheck _________________________________________*/

function IsEmail(s) {
	var a = false;
 	var res = false;
 	if(typeof(RegExp) == 'function') {
 		var b = new RegExp('abc');
		if(b.test('abc') == true){a = true;}
	}
	
 	if(a == true) {
		reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)(\\@)([a-zA-Z0-9\\-\\.]+)(\\.)([a-zA-Z]{2,4})$');
  		res = (reg.test(s));
	}
 	else {
 		res = (s.search('@') >= 1 &&
		s.lastIndexOf('.') > s.search('@') &&
		s.lastIndexOf('.') >= s.length-5)
	}
	return(res);
}

/* Kontrolle ob Entertaste gedrückt wurde für Submit __*/

function IsEnter (oEvent, sFunction) {

	if (oEvent.keyCode == 13 && !oEvent.shiftKey) {
		window.setTimeout(sFunction, 1);
	}
	
	return false; 
}