#nav #navintlour li a {background: #fff url(../img/nav-intlour.gif) no-repeat;} 
#nav #navintlour #navourapproach a {background-position: 0 0;}
#nav #navintlour #navourmethods a {background-position: 0 -21px;}
#nav #navintlour #navourexpertise a {background-position: 0 -42px;}
#nav #navintlour #navournetwork a {background-position: 0 -63px;}
#nav #navintlour #navournetwork1 a {background-position: 0 -84px;}
#nav #navintlour #navournetwork2 a {background-position: 0 -105px;}
#nav #navintlour #navoursolutions a {background-position: 0 -126px;}
#nav #navintlour #navoursolutions1 a {background-position: 0 -147px;}
#nav #navintlour #navoursolutions2 a {background-position: 0 -168px;}
#nav #navintlour #navoursolutions3 a {background-position: 0 -189px;}
#nav #navintlour #navoursolutions4 a {background-position: 0 -210px;}

#nav #navintlfind li a {background: #fff url(../img/nav-intlfind.gif) no-repeat;} 
#nav #navintlfind #navfindoffice a {background-position: 0 0;}
#nav #navintlfind #navfindtools a {background-position: 0 -21px;}
#nav #navintlfind #navfindtools1 a {background-position: 0 -42px;}
#nav #navintlfind #navfindtools2 a {background-position: 0 -63px;}
#nav #navintlfind #navfindtools3 a {background-position: 0 -84px;}

#nav #navintlour #navourapproach a:hover, #nav #navintlour #navourapproach a.on {background-position: -164px 0;}
#nav #navintlour #navourmethods a:hover, #nav #navintlour #navourmethods a.on {background-position: -164px -21px;}
#nav #navintlour #navourexpertise a:hover, #nav #navintlour #navourexpertise a.on {background-position: -164px -42px;}
#nav #navintlour #navournetwork a:hover, #nav #navintlour #navournetwork a.on {background-position: -164px -63px;}
#nav #navintlour #navournetwork1 a:hover, #nav #navintlour #navournetwork1 a.on {background-position: -164px -84px;}
#nav #navintlour #navournetwork2 a:hover, #nav #navintlour #navournetwork2 a.on {background-position: -164px -105px;}
#nav #navintlour #navoursolutions a:hover, #nav #navintlour #navoursolutions a.on {background-position: -164px -126px;}
#nav #navintlour #navoursolutions1 a:hover, #nav #navintlour #navoursolutions1 a.on {background-position: -164px -147px;}
#nav #navintlour #navoursolutions2 a:hover, #nav #navintlour #navoursolutions2 a.on {background-position: -164px -168px;}
#nav #navintlour #navoursolutions3 a:hover, #nav #navintlour #navoursolutions3 a.on {background-position: -164px -189px;}
#nav #navintlour #navoursolutions4 a:hover, #nav #navintlour #navoursolutions4 a.on {background-position: -164px -210px;}

#nav #navintlfind #navfindoffice a:hover, #nav #navintlfind #navfindoffice a.on {background-position: -164px 0;}
#nav #navintlfind #navfindtools a:hover, #nav #navintlfind #navfindtools a.on {background-position: -164px -21px;}
#nav #navintlfind #navfindtools1 a:hover, #nav #navintlfind #navfindtools1 a.on {background-position: -164px -42px;}
#nav #navintlfind #navfindtools2 a:hover, #nav #navintlfind #navfindtools2 a.on {background-position: -164px -63px;}
#nav #navintlfind #navfindtools3 a:hover, #nav #navintlfind #navfindtools3 a.on {background-position: -164px -84px;}