// ref.js 

function getCookie(Name) {   
var search = Name + "="  
 if (document.cookie.length > 0) { // if there are any cookies      
offset = document.cookie.indexOf(search)      
 if (offset != -1) { // if cookie exists          
offset += search.length          // set index of beginning of value        
 end = document.cookie.indexOf(";", offset)          // set index of end of cookie value         
if (end == -1)   end = document.cookie.length        
 return unescape(document.cookie.substring(offset, end))      }    
}}

var gC = getCookie('Prefs')
if (typeof(gC) == 'string' && gC.indexOf('NOrefBGcolor')>-1) {
document.write('<style type="text/css">')
document.write('.mainTable {  background: #ffffff}')
document.write('</style>')
}