a.booklink:link { color:blue; }
a.booklink:active { color:blue; }
a.booklink:visited { color:blue; }

a.applink:link { color:red; }
a.applink:active { color:red; }
a.applink:visited { color:orange; }

a.heblink:link { color:green; }
a.heblink:active { color:green; }
a.heblink:visited { color:gray; }

a.studylink:link { color:fuchsia; }
a.studylink:active { color:fuchsia; }
a.studylink:visited { color:maroon; }