function HideContent(d) {
    document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
    document.getElementById(d).style.display = "block";
}
function ReverseDisplay(d) {
    if (document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
    else { document.getElementById(d).style.display = "none"; }
}
function ToggleDisplay(d) {
    if (document.getElementById(d).style.display == "inherit") { document.getElementById(d).style.display = "none"; }
    else { document.getElementById(d).style.display = "inherit"; }
}



function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=1,width=660,height=550,left = 310,top = 237');");
}

/* this is specifically for the search toggle title / author */

function formshowhide(id)
{
if(id == "formtitle")
{
document.getElementById('booktitle').style.display = "block";
document.getElementById('bookauthor').style.display = "none";
}
else
{
document.getElementById('booktitle').style.display = "none";
document.getElementById('bookauthor').style.display = "block";
}
}