function textoff(elt,vorlage)
{
	if (elt.value == vorlage)
		elt.value="";
}	
function texton(elt,vorlage)
{
	if (elt.value == "")
		elt.value=vorlage;
}	
function checkFeld(formular) {
re = /[^ \t\n@]+@[^ \t\n@\.]+(\.[^ \t\n@\.]*)*[ ]*$/
	if (formular.email.value == "" || !(formular.email.value.match(re))) 
	{
		alert ('Bitte geben Sie eine Ihre E-Mail-Adresse ein!');
	} else {
		formular.submit();
	}
	return false;
}

function MailLink(feldname) {
	var email = document.getElementById(feldname);
	if (email && email.nodeName.toLowerCase() == "a") {
		var addr = email.firstChild.nodeValue;
		var newaddr = addr.replace(/ \(at\) /i, "@");
		if (newaddr != addr) {
			email.setAttribute("href", "mailto:"+newaddr);
			email.innerHTML = newaddr;
		}
	}
}