Reason is that a number of HTML tools, such as editors and browsers can be used.
The system is written mainly in PERL, Javascript, and a Java application. Because the current system is based on SGML, a translation is relatively easy. Although XML itself is a standard, related standards are still under development. Especially the XSL stylesheet formatting and the XSL stylesheet transformation standards are needed. First experiments with applying the draft standards, show they will be a powerful tool, which will allow us, to replace the transformation part currently present in our system with a more flexible standards based alternative.