Indexer specification.

Hi all. Is there any chance someone could detail what the indexer has to provide and how it would be accessed/used? I would like to have a go. A few additional questions. 1 - What should the index be stored in? 2 - Assuming an unchanged .manual.xml, does this mean no need to re-index? - A hash (md5?) rather than datetime? 3 - At some stage are we expecting to not need .manual.xml and therefore the indexer will have to work off the dom loaded xml? 4 - How would you determine that reindexing is not required from the dom loaded xml? (Don't think I can, but an md5 of the loaded xml would probably be enough though? -- ----- Richard Quadling Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731 "Standing on the shoulders of some very clever giants!"