Ace:Webstart Client

<SCRIPT LANGUAGE="JavaScript"> var javawsInstalled = 0; var javaws142Installed=0; var javaws150Installed=0; var javaws160Installed = 0; isIE = "false"; if (navigator.mimeTypes && navigator.mimeTypes.length) {

  x = navigator.mimeTypes['application/x-java-jnlp-file']; 
  if (x) { 
     javawsInstalled = 1; 
     javaws142Installed=1;
     javaws150Installed=1;
     javaws160Installed = 1; 
 } 

} else {

  isIE = "true"; 

} </SCRIPT> <SCRIPT LANGUAGE="VBScript"> on error resume next If isIE = "true" Then

 If Not(IsObject(CreateObject("JavaWebStart.isInstalled"))) Then
    javawsInstalled = 0
 Else
    javawsInstalled = 1
 End If
 If Not(IsObject(CreateObject("JavaWebStart.isInstalled.1.4.2.0"))) Then
    javaws142Installed = 0
 Else
    javaws142Installed = 1
 End If 
 If Not(IsObject(CreateObject("JavaWebStart.isInstalled.1.5.0.0"))) Then
    javaws150Installed = 0
 Else
    javaws150Installed = 1
 End If  
 If Not(IsObject(CreateObject("JavaWebStart.isInstalled.1.6.0.0"))) Then
    javaws160Installed = 0
 Else
    javaws160Installed = 1
 End If  

End If </SCRIPT>

<script language="JavaScript"> /* Note that the logic below always launches the JNLP application

*if the browser is Gecko based. This is because it is not possible
*to detect MIME type application/x-java-jnlp-file on Gecko-based browsers. 
*/

if (javawsInstalled || (navigator.userAgent.indexOf("Gecko") !=-1)) {

   document.write("<a href=http://www.MySite.com/app.jnlp>Launch 
       the application</a>");

} else {

   document.write("Click ");
   document.write("<a href=http://java.sun.com/PluginBrowserCheck?
       pass=http://www.MySite.com/download.html&
       fail=http://java.sun.com/javase/downloads/ea.jsp>here</a> ");
   document.write("to download and install JRE 5.0 and 
       the application.");

} </SCRIPT>