function checkMail(str){
        if( (str.indexOf("@") == -1) || (str.indexOf(",") != -1) ){
                return false;
        }
        strTeile = str.split("@");
        if( (strTeile[0].length == 0) || (strTeile[1].length == 0) ){
                return false;
        }
        return true;
}
function checkFormular(item){
	switch(item){
		case 2:
			if(!checkMail(document.kontaktform.Email.value)){
				document.kontaktform.Email.className = "error";
				document.getElementById("mail").className="visible";
			}else{
				document.kontaktform.Email.className = "";
				document.getElementById("mail").className="hidden";
			}
		default:
			if(document.kontaktform.Name.value == ""){
				document.kontaktform.Name.className = "error";
				document.getElementById("nameTEST").className="visible";
			}else{
				document.kontaktform.Name.className = "";
				document.getElementById("nameTEST").className="hidden";
			}
	}

}

function kontaktform_submit()
{

	if(document.kontaktform.Name.value == ""){
			alert('Bitte geben Sie Ihren Namen an.');
			document.kontaktform.Name.focus();
			document.kontaktform.Name.className = "error";
			document.getElementById("nameTEST").className="visible";
	}else{
		document.kontaktform.Name.className = "";
		document.getElementById("nameTEST").className="hidden";

		if (document.kontaktform.Email.value.indexOf("@") == -1){
			alert('Bitte korrigieren Sie die eMail-Adresse.');
			document.kontaktform.Email.focus();
			document.kontaktform.Email.className = "error";
			document.getElementById("mail").className="visible";
		}else{
			document.kontaktform.Email.className = "";
			document.getElementById("mail").className="hidden";
			document.kontaktform.submit();
		}
	};
};