//--------------------------------------------------
// E-Mail-Adresse in JavaScript generieren
//--------------------------------------------------
function MailAdresse(name,domain,tld,text) {
	var email = "<a href='mailto:"+name+"@"+domain+"."+tld+"'>"+text+"</a>";
	document.write(email);
}

//--------------------------------------------------
// Pruefen des Formulars "kontakt"
//--------------------------------------------------
function checkKontakt() {
 	if(document.kontakt.name.value == "Vorname Name") {
   		alert("Bitte geben Sie Ihren Namen an!");
   		document.kontakt.name.focus();
   		return false;
  	}  	
   	if(document.kontakt.anschrift.value == "Anschrift") {
   		alert("Bitte die Anschrift eingeben!");
   		document.kontakt.anschrift.focus();
   		return false;
  	}
   	if(document.kontakt.ort.value == "PLZ Ort") {
   		alert("Bitte den Ort eingeben!");
   		document.kontakt.ort.focus();
   		return false;
  	}
	if (document.kontakt.absmail.value == "") {
		alert("Bitte Ihre E-Mail-Adresse eingeben!");
		document.kontakt.absmail.focus();
		return false;
	}
	if (document.kontakt.absmail.value.indexOf("@") == -1) {
		alert("Das ist keine E-Mail-Adresse!");
		document.kontakt.absmail.focus();
		return false;
	}  	
  	return true;
}

//--------------------------------------------------
// Formular "kontakt" absenden
//--------------------------------------------------
function sendenKontakt() {
	var ok;
	ok = checkKontakt();
	if(ok == true) {
		document.kontakt.submit();
	}
}

//--------------------------------------------------
// Grafische Navigation
//--------------------------------------------------

imagealt = "";

function imageon(name){
	if (imagealt != name){
        	document[name].src = eval(name + "on.src");
	}
}

function imageoff(name){
	if (imagealt != name){
		document[name].src = eval(name + ".src");
	}
}

function on(name){
	if (check == true){
		imageon(name);
	}
}

function off(name){
	if (check == true){
		imageoff(name);
	}
}

function alt(name){
	if (check == true){
		document[name].src = eval(name + "alt.src");
		if (imagealt != name){
			if (imagealt != ""){
				document[imagealt].src = eval(imagealt + ".src");
			}
		}
		imagealt = name
	}
}