Users's Stylesheet

Hello I have to create a extension of SmallWiki to manage the user's preferences. In this goal, I would like to put the user's stylesheet in place of the structure's stylesheet. I see that the template who render the stylesheet tag is the TemplateBodyContents. The matter is that this one is not removeable from the template list and then whe can't do the replacement. The only thing we can do is to put another style tag in the html but I'm not sure all the browsers will take this second stylesheet in account. I think it's it should be a good idea to split the TemplateBodyContents in 2 templates: one for the contents and another for the stylesheet (e.g.: TemplateHeadStylesheet) which is removeable. Rémy Knop PS: sorry for the faults, it's not my mother language