function clickSeries(){
//shows series titles if image is clicked on
if (document.getElementById('divSeries').style.display != 'block'){
    document.getElementById('serialsImg').src = 'http://dlib.nyu.edu/eadapp/images/arrowup.gif';
    document.getElementById('divSeries').style.display = 'block';
}
//or hides it

else{
    document.getElementById('serialsImg').src = 'http://dlib.nyu.edu/eadapp/images/arrowdn.gif';
    document.getElementById('divSeries').style.display = 'none';
}


}

function chkURL(){
//check to see if there's a named anchor tag in url
var posAnchor = window.location.href.indexOf('#');
//if going from eadsearch
if (posAnchor != -1){
var url = window.location.href;
url = url.split(".html");
//grab anchor tag
var anchor = url[1];
url = url[0]+"_content.html"+anchor;
//force url to be anchor name
frames['content'].location.href=url;
var id = anchor.substring(1);
var el = frames['content'].document.getElementById(id);
var tr = el.parentNode;
tr.style.backgroundColor = 'yellow';
}


}