if(lang=='en')
	errormsg="Please fill in the field <fieldname>";
else
	errormsg="Bitte fuellen Sie das Feld <fieldname> aus.";

function getXmlHttpRequestObject() {
 if (window.XMLHttpRequest) {
    return new XMLHttpRequest(); //Mozilla, Safari ...
 } else if (window.ActiveXObject) {
    return new ActiveXObject("Microsoft.XMLHTTP"); //IE
 } else {
    //Display our error message
    //alert("Your browser doesn't support the XmlHttpRequest object.");
 }
}

var receiveReq = getXmlHttpRequestObject();

function makeRequest(url, param) {
 if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
   receiveReq.open("POST", url, true);
   receiveReq.onreadystatechange = updatePage; 
   receiveReq.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
   receiveReq.setRequestHeader("Content-length", param.length);
   receiveReq.setRequestHeader("Connection", "close");
   receiveReq.send(param);
 }   
}

function updatePage() {
 if (receiveReq.readyState == 4) {
   img = document.getElementById('imgCaptcha'); 
   img.src = 'captcha.php?' + Math.random();
	try{
       img = document.getElementById('imgCaptcha1'); 
       img.src = 'captcha.php?' + Math.random();
    }catch(err){
    	//
    }
 }
}

function refreshCaptcha() {
 var url = 'captcha.php';
 makeRequest(url, '');
 return false
}

function setSelect(elem){
	elem.parentNode.getElementsByTagName('div')[0].innerHTML=elem.options[elem.selectedIndex].text
}

function setCheckbox(el, state){
	var objWrap;
	objWrap = document.getElementById(el);
	if(el) {
	    if(state) objWrap.className = "checkbox-container checkboxChecked";
	    else  objWrap.className = "checkbox-container";
	}
}

function setRadio(el, value){
	var objWrap;
	objWrap = document.getElementById(el);
	if(el) {
	    if(value=='x'){
         document.getElementById(el+'a').className = "checkbox-container checkboxChecked";
         document.getElementById(el+'b').className = "checkbox-container";
        }else{
         document.getElementById(el+'b').className = "checkbox-container checkboxChecked";
         document.getElementById(el+'a').className = "checkbox-container";
        }
	}
}

function showdiv(mode){
	if (mode){
		document.getElementById('newsletter_div').style.display='';
		document.getElementById('newsletter_fields').style.display='';
   		document.getElementById('errordiv').style.display='none';
        document.getElementById('inp_email').value=document.getElementById('email_input').value;
	}else{
		document.newslet.reset();
		document.kompakt.reset();
		document.getElementById('newsletter_div').style.display='none';
		document.getElementById('newsletter-confirm').style.display='none';
	}
    return false;
}

function validateAll(formName) {
	f = document.forms[formName];
    for ( var i = 0 ; i < f.elements.length ; i++ ) {
        if ( f.elements[i].name == 'send_Capcha')
        	if (f.elements[i].value==''){            
				alert(errormsg.replace(/fieldname/g, "Code"));
                f.send_Capcha.focus();
            	return false
            }
        if ( f.elements[i].name == 'send_Anrede'){
        	//alert(f.send_Anrede.selectedIndex);
        	if ((f.send_Anrede.options[f.send_Anrede.selectedIndex].value=='')){
				alert(errormsg.replace(/fieldname/g, (lang=='en'?"Title":"Anrede")));
   		        f.send_Anrede.focus(); 
            	return false
            }
        }
        if ( f.elements[i].name.indexOf("__validate__",0) == 0 ) {
        	fieldname = f.elements[i].name.substr(12,f.elements[i].name.length);
            text2show=f.elements[i].value;
            check = valTextBox(formName, fieldname, (text2show.length>2 ? text2show : document.forms[formName][fieldname].name.substr(5,document.forms[formName][fieldname].name.length)));
        	if ( check == false ) return false;
        }
        if ( f.elements[i].name == 'send_Email')
        	if (!validateEmail(f.elements[i].value)){
                f.send_Email.focus();
            	return false
            }
    }
    return true;
}

function validateKontakt() {
    for ( var i = 0 ; i < document.kontakt.elements.length ; i++ ) {
        if ( document.kontakt.elements[i].name == 'send_kCapcha')
        	if (document.kontakt.elements[i].value==''){
				alert(errormsg.replace(/fieldname/g, "Code"));
                document.kontakt.send_kCapcha.focus();
            	return false
            }
        if ( document.kontakt.elements[i].name.indexOf("__validate__",0) == 0 ) {
        	fieldname = document.kontakt.elements[i].name.substr(12,document.kontakt.elements[i].name.length);
            check = valTextBox('kontakt', fieldname);
        	if ( check == false ) {
        		return false;
        	}
        }
        if ( document.kontakt.elements[i].name == 'send_kEmail')
        	if (!validateEmail(document.kontakt.elements[i].value)){
                document.kontakt.send_kEmail.focus();
            	return false
            }
        if ( document.kontakt.elements[i].name == 'send_kAnrede')
        	if ((document.kontakt.send_kAnrede.options[document.kontakt.send_kAnrede.selectedIndex].value=='')){
				alert(errormsg.replace(/fieldname/g, "Anrede"));
   		        document.kontakt.send_kAnrede.focus(); 
            	return false
            }
    }
    return true;
}

function valTextBox( formname, curfield, text2show ) { 
    // err02.substr(4,err02.length)
    fieldName   = document.forms[formname][curfield]; 
    fieldValue  = fieldName.value; 
    fieldLength = fieldValue.length; 
    minLength   = 0; 
    maxLength   = 256; 
    
    var err02   = errormsg.replace(/fieldname/g, text2show); 
    
    if( fieldValue == "" ) { 
      alert( err02 ); 
      fieldName.focus(); 
      return false;
    } else {
      return true;
    }
} 

function validateEmail(input)
{
	var emailPat=/^(.+)@(.+)$/
    var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
    var validChars="\[^\\s" + specialChars + "\]"
    var quotedUser="(\"[^\"]*\")"
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
    var atom=validChars + '+'
    var word="(" + atom + "|" + quotedUser + ")"
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
    if (lang=='en')
	    errtxt="E-Mail: Please enter a valid e-mail address!\n"
    else
    	errtxt="E-Mail: Bitte geben Sie eine g\u00fcltige E-Mail Adresse an!\n"
    
    var matchArray=input.match(emailPat)
    if (matchArray==null) {
        alert(errtxt); // check @ and .
        return false
    }
    var user=matchArray[1]
    var domain=matchArray[2]
    
    if (user.match(userPat)==null) {
        alert(errtxt); // username doesn't seem to be valid
        return false
    }
    
    var IPArray=domain.match(ipDomainPat)
    if (IPArray!=null) {
      for (var i=1;i<=4;i++) {
        if (IPArray[i]>255) {
            alert(errtxt); // Destination IP address is invalid
            return false
        }
      }
      return true
    }
    
    var domainArray=domain.match(domainPat)
    if (domainArray==null) {
     alert(errtxt); // The domain name doesn't seem to be valid
       	return false
    }
    
    var atomPat=new RegExp(atom,"g")
    var domArr=domain.match(atomPat)
    var len=domArr.length
    
    if (len<2) {
        alert(errtxt); // This address is missing a hostname
        return false
	}
    
    return true;
}