var src_path = "https://components.viewpoint.com/MTSInstallers/MetaStream3.jar";

var cur_version = 2;



if (navigator.appName == "Netscape" && 

    parseInt(navigator.appVersion.substring(0,1)) >= 4 &&

    navigator.platform == "Win32" &&

    navigator.javaEnabled()) 

{

  trigger = netscape.softupdate.Trigger;

  if(trigger.UpdateEnabled()) 

  {

	do_update = true;

	if ( (mimeType = navigator.mimeTypes["application/x-mtx"]) != null && 

		  (plugin = mimeType.enabledPlugin) != null) 

	{

		descr_str = String(plugin.description);

		lastind = descr_str.lastIndexOf("r");

		if(lastind >=0 )

		{

			vers = parseInt(descr_str.substring(lastind+1).toString());

			if(!isNaN(vers) && vers >= cur_version)

			{

				do_update = false;

			}

		}

    }

    if(do_update)

	{

		trigger.StartSoftwareUpdate(src_path, trigger.DEFAULT_MODE);

    }

  }

}