<!--

function checkRequiredFields_statusseminar(input)
{
	var requiredFields = new Array("vorname"
	,"nachname"
	,"plz"
	,"strasse"
	,"ort"
	,"email"
	);

	var fieldNames = new Array("Vorname"
	,"Nachname\n"
	,"Postleitzahl"
	,"Strasse"
	,"Ort"
	,"E-Mail Adresse"
	);

	var fieldCheck   = true;
	var fieldsNeeded = "\nFolgende Felder müssen ausgefüllt werden:\n\n";

	for(var fieldNum=0; fieldNum < requiredFields.length; fieldNum++) {
		if ((input.elements[requiredFields[fieldNum]].value == "") ||
			(input.elements[requiredFields[fieldNum]].value == " ")) {
				fieldsNeeded += fieldNames[fieldNum] + "\n";
				fieldCheck = false;
		}
	}

	// all required fields have been entered

	if (fieldCheck == true) {
		if (emailCheck(input.email)) {
			return true;
		} else {
			return false;
		}
	} else // some required fields are missing values
	{
		alert(fieldsNeeded);
		return false;
	}
}

function checkRequiredFields(input)
{
	var requiredFields = new Array("p_sender"
	,"p_sender_name"
	,"p_recipient"
	,"p_recipient_name"
	);

	var fieldNames = new Array("Absender Email"
	,"Absender Name\n"
	,"Empfänger Email"
	,"Empfänger Name"
	);

	var fieldCheck   = true;
	var fieldsNeeded = "\nFolgende Felder müssen ausgefüllt werden:\n\n";

	for(var fieldNum=0; fieldNum < requiredFields.length; fieldNum++) {
		if ((input.elements[requiredFields[fieldNum]].value == "") ||
			(input.elements[requiredFields[fieldNum]].value == " ")) {
				fieldsNeeded += fieldNames[fieldNum] + "\n";
				fieldCheck = false;
		}
	}

	// all required fields have been entered

	if (fieldCheck == true) {
		if (emailCheck(input.p_sender) == true && emailCheck(input.p_recipient) == true) {
			return true;
		} else {
			return false;
		}
	} else // some required fields are missing values
	{
		alert(fieldsNeeded);
		return false;
	}
}

// -------------------------------------------------------------------------

function emailCheck (emailStr) {
	emailStr = emailStr.value;
	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 +")*$")

	var matchArray=emailStr.match(emailPat)

	if (matchArray==null) {
		alert("Die EMail Adresse ist ungültig\n(überprüfen Sie bitte '@' und '.' Zeichen)")
		return false
	}

	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null) {
	    alert("In der EMail Adresse scheint der Name vor dem @ Zeichen ungültig zu sein.")
    	return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
    	for (var i=1;i<=4;i++) {
	    	if (IPArray[i]>255) {
	        	alert("Ziel IP Netz ist nicht gültig!")
				return false
	  		}
    	}
    	return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
		alert("In der EMail Adresse scheint die Domain nicht gültig zu sein.")
    	return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || 
    	domArr[domArr.length-1].length>3) {
		alert("Die EMail Adresse sollte mit einer gültigen Domain enden.\n(z.B. @biosicherheit.de)")
   		return false
	}

	if (len<2) {
   		var errStr="In der EMail Adresse fehlt der Hostname!!"
   		alert(errStr)
   		return false
	}

	return true;
}
// -->