var itemcount = 0; 

function validateFormContact(theForm) {

	document.getElementById('formErrors').style.display = "none";

	var reason = "";

  	reason += validateLegalChars(theForm.name, "Name");
  	reason += validateEmail(theForm.email, "Email");
      
  	if (reason != "") {
  		document.getElementById('formErrors').style.display = "block";
  		document.getElementById('formErrors').innerHTML = reason ;
    	return false;
  	}

  	return true;
  	
}

function validateErimaOrder(theForm) {

	document.getElementById('formErrors').style.display = "none";

	var reason = "";

  	reason += validateLegalChars(theForm.name, "Name");
  	reason += validateEmpty(theForm.address, "Adresse");
  	reason += validateNumber(theForm.zip, "Postleitzahl");
  	reason += validateLegalChars(theForm.city, "Ort");
  	reason += validateEmail(theForm.email, "Email");
  	reason += validatePhone(theForm.phone, "Telefon");
  	reason += validateOrder();
      
  	if (reason != "") {
  		document.getElementById('formErrors').style.display = "block";
  		document.getElementById('formErrors').innerHTML = reason ;
    	return false;
  	}
  	return true;
}


function validateFormPerson(theForm) {

	document.getElementById('formErrors').style.display = "none";

	var reason = "";

  	reason += validateLegalChars(theForm.firstname, "Vorname");
  	reason += validateLegalChars(theForm.street, "Strasse");
  	reason += validateLegalChars(theForm.lastname, "Nachnamen");
  	reason += validateLegalChars(theForm.city, "Ort");
  	reason += validateEmail(theForm.email, "Email");
  	reason += validatePhone(theForm.phone, "Telefon");
  	reason += validateNumber(theForm.zip, "Postleitzahl");
  	reason += validateList(theForm.birthdate_day, "Geburtsdatum (Tag)");
  	reason += validateList(theForm.birthdate_month, "Geburtsdatum (Monat)");
  	reason += validateList(theForm.birthdate_year, "Geburtsdatum (Jahr)");
  	reason += validateDatelist("campdate[]", "Campdaten");
      
  	if (reason != "") {
  		document.getElementById('formErrors').style.display = "block";
  		document.getElementById('formErrors').innerHTML = reason ;
    	return false;
  	}
  	return true;
}

function validateFormYoungPerson(theForm) {

	document.getElementById('formErrors').style.display = "none";

	var reason = "";

  	reason += validateLegalChars(theForm.firstname, "Vorname");
  	reason += validateLegalChars(theForm.street, "Strasse");
  	reason += validateLegalChars(theForm.lastname, "Nachnamen");
  	reason += validateLegalChars(theForm.city, "Ort");
  	reason += validateEmail(theForm.email, "Email");
  	reason += validatePhone(theForm.phone, "Telefon");
  	reason += validateNumber(theForm.zip, "Postleitzahl");
  	reason += validateList(theForm.birthdate_day, "Geburtsdatum (Tag)");
  	reason += validateList(theForm.birthdate_month, "Geburtsdatum (Monat)");
  	reason += validateList(theForm.birthdate_year, "Geburtsdatum (Jahr)");
  	reason += validateDatelist("campdate[]", "Campdaten");
  	reason += validateCheckbox(theForm.camprules, "Camprules");
      
  	if (reason != "") {
  		document.getElementById('formErrors').style.display = "block";
  		document.getElementById('formErrors').innerHTML = reason ;
    	return false;
  	}
  	return true;
}

function validateFormTeam(theForm) {

	document.getElementById('formErrors').style.display = "none";

	var reason = "";

  	reason += validateLegalChars(theForm.teamname, "Teamname");
  	reason += validateNumber(theForm.number_of_players, "Anzahl Spielerinnen");
  	reason += validateLegalChars(theForm.firstname, "Vorname");
  	reason += validateLegalChars(theForm.lastname, "Nachnamen");
  	reason += validateLegalChars(theForm.street, "Strasse");
  	reason += validateLegalChars(theForm.city, "Ort");
  	reason += validateEmail(theForm.email, "Email");
  	reason += validatePhone(theForm.phone, "Telefon");
  	reason += validateNumber(theForm.zip, "Postleitzahl");
  	reason += validateList(theForm.birthdate_day, "Geburtsdatum (Tag)");
  	reason += validateList(theForm.birthdate_month, "Geburtsdatum (Monat)");
  	reason += validateList(theForm.birthdate_year, "Geburtsdatum (Jahr)");
  	reason += validateDatelist("campdate[]", "Campdaten");
      
  	if (reason != "") {
  		document.getElementById('formErrors').style.display = "block";
  		document.getElementById('formErrors').innerHTML = reason ;
    	return false;
  	}
  	return true;  	
}


function trim(s) {
  return s.replace(/^\s+|\s+$/, '');
}

function validateOrder() {
    var error = "";
    
	if (itemcount == 0) { error = "Sie haben <strong>keinen Artikel</strong> bestellt.<br/>"; }

    return error;  
}

// check if e.g. for camprules
function validateCheckbox(fld, fldAlias) {
    var error = "";
 
    if (!(fld.checked)) {
        error = "Sie m&uuml;ssen unsere <strong>" + fldAlias + " akzeptieren<\/strong> um sich anzumelden.<br/>";
    } 
    return error; 
}

function validateDatelist(fld, fldAlias) {
    var error = "";
    var count = 0;
    
    set = document.theForm.elements[fld];
    
    for (var j=0; j<set.length; j++) {
      if (set[j].checked) { count++ ; }
    }

	if (count == 0) { error = "Bitte w&auml;hlen sie mindestens ein Element aus der Liste <strong>" + fldAlias + "<\/strong>.<br/>"; }

    return error;  
}

// validate if list element is chosen e.g. year of birth
function validateList(fld, fldAlias) {
    var error = "";
 
    if (fld.value == "DEFAULT") {
        fld.style.background = '#FBE3E4'; 
        error = "Bitte w&auml;hlen sie ein Element aus der Liste <strong>" + fldAlias + "<\/strong> .<br/>";
    } else {
        fld.style.background = '#ffffff';
    }
    return error;  
}

function validateEmpty(fld, fldAlias) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FBE3E4'; 
        error = "Das Feld <strong>" + fldAlias + "<\/strong> darf nicht leer sein.<br/>";
    } else {
        fld.style.background = '#ffffff';
    }
    return error;  
}

function validateLegalChars(fld, fldAlias) {
    // mehr als zwei Zeichen, weniger als 100 keine Nummern
    var error = "";
    var stripped = fld.value.replace(/[\(\)\.\-\ ]/g, '');    
    reg = /\d/;
 	
    if (fld.value == "") {
        fld.style.background = '#FBE3E4'; 
        error = "Das Feld <strong> " + fldAlias + "<\/strong> darf nicht leer sein.<br/>";
    } else if ((fld.value.length < 2) || (fld.value.length > 100)) {
        fld.style.background = '#FBE3E4'; 
        error = "Die Eingabe im Feld <strong>" + fldAlias + "<\/strong> ist zu kurz oder zu lang.<br/>";
    } else if (reg.test(stripped)) {
        fld.style.background = '#FBE3E4'; 
        error = "Im Feld <strong>" + fldAlias + "<\/strong> wurden ung&uuml;ltige Zeichen eingegeben.<br/>";
    } else {
        fld.style.background = '#ffffff';
    }
    return error;
}

function validateEmail(fld, fldAlias) {
    var error = "";
    var tfld = trim(fld.value);	// value of field with whitespace trimmed off
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
   
    if (fld.value == "") {
        fld.style.background = '#FBE3E4';
        error = "Sie müssen eine <strong> " + fldAlias + "-Adresse<\/strong> angeben.<br/>";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        fld.style.background = '#FBE3E4';
        error = "Bitte geben sie eine g&uuml;ltige <strong> " + fldAlias + "-Adresse<\/strong> ein.<br/>";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = '#FBE3E4';
        error = "Das eingegebene <strong> " + fldAlias + "-Adresse<\/strong> enthält ungültige Zeichen.<br/>";
    } else {
        fld.style.background = '#ffffff';
    }
    return error;
}

function validateNumber(fld, fldAlias) {
    var error = "";
    
    if (fld.value == "") {
        error = "Das Feld <strong> " + fldAlias + "<\/strong> darf nicht leer sein.<br/>";
        fld.style.background = '#FBE3E4';
    } else if (isNaN(fld.value)) {
        error = "Das Feld <strong> " + fldAlias + "<\/strong> darf nur Zahlen beinhalten.<br/>";
        fld.style.background = '#FBE3E4';
    } else {
        fld.style.background = '#ffffff';
    }
    return error;
}

function validatePhone(fld, fldAlias) {
    var error = "";
    var stripped = fld.value.replace(/[\(\)\.\-\ ]/g, '');    

   if (fld.value == "") {
        error = "Das Feld <strong> " + fldAlias + "<\/strong> darf nicht leer sein.<br/>";
        fld.style.background = '#FBE3E4';
    } else if (isNaN(stripped)) {
        error = "Das Feld <strong> " + fldAlias + "<\/strong> darf nur Zahlen beinhalten.<br/>";
        fld.style.background = '#FBE3E4';
    } else {
        fld.style.background = '#ffffff';
    }
    return error;
}

function addRow(iNo, iName, iSize, iCount)
{
         if (!document.getElementsByTagName) return;
         // address the right table!
         tabBody = document.getElementsByTagName("TBODY").item(1);
         row = document.createElement("TR");
         
         cell1 = document.createElement("TD");
         cell2 = document.createElement("TD");
         cell3 = document.createElement("TD");
         cell4 = document.createElement("TD");
         cell5 = document.createElement("TD");
         
         textnode1 = document.createTextNode(iNo);
         textnode2 = document.createTextNode(iName);
         textnode3 = document.createTextNode(iSize);
         textnode4 = document.createTextNode(iCount);
         
         el = document.createElement('input');
         el.type = 'button';
  		 el.name = 'del';
 		 el.id = 'del';
 		 el.value = 'entfernen';
 		 el.onclick = new Function('F','removeItem(this)');
 		 
 		 elNo = document.createElement('input');
         elNo.type = 'hidden';
  		 elNo.name = 'iNo[]';
 		 elNo.value = iNo;
 		 
 		 elName = document.createElement('input');
         elName.type = 'hidden';
  		 elName.name = 'iName[]';
 		 elName.value = iName;
 		 
 		 elSize = document.createElement('input');
         elSize.type = 'hidden';
  		 elSize.name = 'iSize[]';
 		 elSize.value = iSize;
 		 
 		 elCount = document.createElement('input');
         elCount.type = 'hidden';
  		 elCount.name = 'iCount[]';
 		 elCount.value = iCount;
         
         cell1.appendChild(textnode1);
         cell1.appendChild(elNo);
         cell2.appendChild(textnode2);
         cell2.appendChild(elName);
         cell3.appendChild(textnode3);
         cell3.appendChild(elSize);
         cell4.appendChild(textnode4);
         cell4.appendChild(elCount);
         cell5.appendChild(el);
         
         row.appendChild(cell1);
         row.appendChild(cell2);
         row.appendChild(cell3);
         row.appendChild(cell4);
         row.appendChild(cell5);
         
         tabBody.appendChild(row);
}



function addItem(theForm) {

	document.getElementById('orderErrors').style.display = "none";

	document.getElementById('items').style.display = "block";
	
 	var reason = "";
 	
 	reason += validateEmpty(theForm.item_no, "Artikelnummer");
 	reason += validateEmpty(theForm.item_name, "Artikelname");
 	reason += validateEmpty(theForm.item_size, "Grösse");
 	reason += validateNumber(theForm.item_count, "Anzahl");
 		
	if (reason != "") {
  		document.getElementById('orderErrors').style.display = "block";
  		document.getElementById('orderErrors').innerHTML = reason ;
  	}
	else {
	
		itemcount++;
		
		// hide first row
		//document.getElementById("no_item").style.display = "none";
		
		// add row to table
		addRow(theForm.item_no.value, theForm.item_name.value, theForm.item_size.value, theForm.item_count.value);
		
  		// empty fields
  		theForm.item_no.value = '';
  		theForm.item_name.value = '';
  		theForm.item_size.value = '';
  		theForm.item_count.value = '';

  		// add hidden fields 
  		
	}

}


function removeItem(r) {
	
	itemcount--;
	
	var i = r.parentNode.parentNode.rowIndex;
	document.getElementById('items').deleteRow(i);
	
	if (itemcount == 0)  document.getElementById("items").style.display = "none";
 
}