The directory contains unofficial nightly builds of Batik from the subversion repository trunk. These are built using JDK 1.5.
The most recent build can be run using Java Web Start. If the JRE you have installed supports Web Start, you can run Squiggle. The jars are signed with a certificate generated from CACert.org. Since CACert.org is not by default recognised as a trusted certification authority by Sun's JRE, you will get a warning from the Web Start program about the certificate being invalid. This warning can be avoided by downloading the CACert.org class 1 root certificate and installing it as a "Signer CA" in the Java Control Panel.
You can pass a URI to load by constructing a URI of the form:
http://mcc.id.au/batik-nightly/webstart/squiggle.pl?uri=<URI of SVG document>
Or a enter a URI here:
stelt suggests a handy bookmarklet that will take the URI of the currently displayed SVG document and open it in Squiggle: