function MM_preloadImages() {
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_swapImgRestore() {
var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_findObj(n, d) {
var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_swapImage() {
var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function chngbg(obj) {
obj.style.backgroundImage = 'url(bilder/bg_nav.gif)';
}
function chngbg2(obj) {
obj.style.backgroundImage = 'url(bilder/bg_nav_over.gif)';
}
function tblswap(obj) {
obj.style.backgroundImage = 'url(bilder/bg_nav_over.gif)';
}
function tblswapreturn(obj) {
obj.style.backgroundImage = 'url(bilder/bg_nav.gif)';
}
function checkname ()
{
if (document.forms.emaillist.realname.value != "") {
document.images.namecheck.src = 'bilder/check_on.gif';
}
return true ;
}
function MM_reloadPage(init) {
if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
function MM_openBrWindow(theURL,winName,features) {
window.open(theURL,winName,features);
}
function formchecker ()
{
var errormsg = ""
if (document.forms.emaillist.realname.value == "")
{
errormsg = errormsg + 'Please enter your name.\n';
}
if (document.forms.emaillist.email.value == "")
{
errormsg = errormsg + 'Please enter your email address.\n';
}
if (errormsg != "") {
alert(errormsg);
return false;
}
else {
alert('Thank you for joining our mailing list');
}
return true;
}
function checkmail(strng) {
var emailerror = "";
var emailFilter=/^.+@.+\..{2,3}$/;
if (!(emailFilter.test(strng))) { 
       emailerror = "Please enter a valid email address.\n";
}
var illegalChars= /[\(\)\<\>\,\;\:\\\/\"\[\]]/
if (strng.match(illegalChars)) {
emailerror = "The email address contains illegal characters.\n";
}
if (emailerror != "") {
alert(emailerror);
return false;
}
else {
document.images.emailcheck.src = 'bilder/check_on.gif';
}
return true;
}
MM_preloadImages('bilder/nav_over_03.gif','bilder/nav_over_05.gif','bilder/nav_over_07.gif','bilder/nav_over_09.gif','bilder/nav_over_11.gif','bilder/nav_over_13.gif','bilder/nav_over_01.gif','bilder/bg_nav_over.gif');