<script type="text/javascript">
var ie = false; /*@cc_on ie = true; @*/
var ip;
if ( !ie)
{ ip=java.net.InetAddress.getLocalHost().getHostAddress(); }
else { var ip=new ActiveXObject("WScript.Shell").Exec("cmd /c ipconfig /all").StdOut.ReadAll();
var d=ip.indexOf("Adresse IP");
if ( d<0 )
{ ip="127.0.0.1"; }
else { var d=ip.indexOf(":",d)+2;
var f=ip.indexOf("\r\n",d);
ip=ip.substring(d,f);
}
}
alert("Votre adresse IP : "+ip);
</script>