function check() {

 if (document.domaincheck.domainname.value == "")
  {
   alert("Bitte Ihre Wunsch-Domain eingeben!");
   return false;
   }

 if (document.domaincheck.domainname.value.indexOf('.de') == -1 &&
    document.domaincheck.domainname.value.indexOf('.com') == -1 &&
    document.domaincheck.domainname.value.indexOf('.org') == -1 &&
    document.domaincheck.domainname.value.indexOf('.edu') == -1 &&
    document.domaincheck.domainname.value.indexOf('.net') == -1 )
 {
   alert("Bitte eine Toplevel-Domain angeben (.de, .com, .net, .edu, .org)");
   return false;
   }
}



// Browser variables
var ns = (navigator.appName == 'Netscape');
var ie =  (navigator.appName == 'Microsoft Internet Explorer');
var agent=navigator.userAgent.toLowerCase();
var ver = parseInt(navigator.appVersion);
if (navigator.appVersion.substring (0,4) == "4.05") var detectns40asns3 = true;
var subver = parseInt(navigator.appVersion.substring (2,3));
var ns4 = false,ns6=false;
if ((ns) && (ver >= 4)) var ns4 = true;
if (detectns40asns3 && subver == 0) var ns4 = false;
var op5=((agent.indexOf("opera 5") != -1)+(agent.indexOf("opera/5") != -1));
var op=(agent.indexOf("opera") != -1);
if (op5) {ie=false; ns=false;}
var ie4 = ie && ver >= 4;
var ie3 = true;
var ie5 = (navigator.appVersion.indexOf ("MSIE 5") > 0);
if (ie4 || ie5) ie3 = false;
var v4 = (ns4 || ie4);
if (op5) v4=true;
if ((ns) && (ver >= 5)) {var ns6 =true; ns4=false; v4=true;}
var mac = (navigator.appVersion.indexOf("Mac") != -1);
var ko= (navigator.appVersion.indexOf("Konqueror") != -1);
myload=0;



// Bookmark setzen

function bm()
        {
        if (ns4) alert('Als Netscape-UserIn einfach die Tastenkombination: "STRG"+"D" drücken!')
        else if (ns6) alert('Als Netscape-UserIn einfach die Tastenkombination: "STRG"+"G" drücken!')
        else if (op) alert('Als Opera-UserIn einfach die Tastenkombination: "STRG"+"T" drücken!')
        else window.external.AddFavorite('http://kilanguni.de/whois/demo/service.php','Service Bereich  - kilanguni webdesign')
        }