Hello, There's a rather irritating CSS bug with the NPL acqui.simple/addbiblio.tmpl template. When you click on the tab numbers, the selected tab is made visible, and all other tabs made invisible. Unfortunately, (at least in the latest Firefox!), the invisible tabs still occupy the same space they would if they were visible. I'm not sure if it's the right fix, but the following version of the active() javascript function (inside the template file) seems to fix it (Added lines are bolded). Apologies that this isn't a patch - I never got around to figuring out how to use the *patch* command properly! Nicholas van Oudtshoorn function active(numlayer) { for (i=0; i <= 9 ; i++ ) { ong = i+"XX"; link = "link"+i; if (numlayer==i) { with(document){ if (document.getElementById(ong)){ document.getElementById (ong).style.visibility="visible"; * document.getElementById (ong).style.height="auto";* } if(document.getElementById(link)){ document.getElementById (link).style.color="#000066"; document.getElementById (link).style.backgroundColor="#FFFFCC"; } } } else { with(document){ if (document.getElementById(ong)){ document.getElementById (ong).style.visibility="hidden"; * document.getElementById (ong).style.height="0";* } if (document.getElementById(link)) { document.getElementById (link).style.color="#669999"; document.getElementById (link).style.backgroundColor="#D8DEB8"; } } } } }