// START tab script
// Adapted from "Javascript + CSS + DOM Magic" by Makiko Itoh
// define variables for "if n4 (Netscape 4), if IE (IE 4.x),
// and if n6 (if Netscape 6/W3C-DOM compliant)"
var n4, ie, n6;
// detect browser support for certain key objects/methods
// and assemble a custom document object
var doc,doc2,doc3,sty;
if (document.layers) {
doc = "document.";
doc2 = ".document.";
doc3 = "";
sty = "";
n4 = true;
} else if (document.all) {
doc = "document.all.";
doc2 = "";
doc3 = "";
sty = ".style";
ie = true;
} else if (document.getElementById) {
doc = "document.getElementById('";
doc2 ="')";
doc3 ="')";
sty = "').style";
n6 = true;
}
// display block or none DIV element
function blocknone(divname,tabidname,listidname,state,tabcolor,tabbg,cursortype) {
if (n4) {
divObj = eval (doc + divname);
tabObj = eval (doc + tabidname);
listObj = eval (doc + listidname);
}
else {
divObj = eval (doc + divname + sty);
tabObj = eval (doc + tabidname + sty);
listObj = eval (doc + listidname + sty);
}
divObj.display = state;
tabObj.color = tabcolor;
listObj.background = tabbg;
tabObj.cursor = cursortype;
}
// variables that hold the value of the currently active (open) menu
var active_tabcontent = null;
var active_tab1 = null;
var active_list1 = null;
// function closes all active menus and turns back to 'off' state
function closeallmenus() {
if (active_tabcontent != null) {
blocknone(active_tabcontent,active_tab1,active_list1,'none','#2568b3','#fff url(/images/css/articleTab_bg.gif) repeat-x top left','pointer');
}
}
// function controls tab content visibility
function controlsubmenu(tabcontent,tabid,listid) {
closeallmenus();
blocknone(tabcontent,tabid,listid,'block','#555','#f1efdd url(/images/css/timelineTabs_selectedArr.gif) no-repeat top center','text');
active_tabcontent = tabcontent;
active_tab1 = tabid;
active_list1 = listid;
}

// function controls internal content visibility 
function showProfileText(showTheText,textID) {
  var profileText = document.getElementById(textID);
  profileText.style.display = showTheText;
}