// JavaScript Document

     function newwindow(sidfile) 

     { 

     window.open('http://www.nls.uk:8080/StyleServer/calcrgn?cat=Traquair&item=/'+sidfile+'.sid&style=maps.xsl&wid=600&hei=575&browser=win_ie&plugin=false','jav','width=640,height=675,resizable=yes'); 

     }