if (document.images)  {
aon=new Image();
aon.src="/link_about_on.gif";
aoff=new Image();
aoff.src="/link_about_off.gif";
bon=new Image();
bon.src="/link_home_on.gif";
boff=new Image();
boff.src="/link_home_off.gif";
con=new Image();
con.src="/link_contact_on.gif";
coff=new Image();
coff.src="/link_contact_off.gif";
don=new Image();
don.src="/link_articles_on.gif";
doff=new Image();
doff.src="/link_articles_off.gif";
eon=new Image();
eon.src="/link_sitemap_on.gif";
eoff=new Image();
eoff.src="/link_sitemap_off.gif";
fon=new Image();
fon.src="/link_products_on.gif";
foff=new Image();
foff.src="/link_products_off.gif";
}

function imgOn(imgName) {
  if (document.images)  {
        document[imgName].src = eval(imgName+"on.src");
  }
}

function imgOff(imgName) {
  if (document.images)  {
    document[imgName].src = eval(imgName + "off.src");
  }
}


function makeWin(url, p_Width, p_Height) {
agent = navigator.userAgent;
windowName = "BookPages";
        
params  = "";
params += "toolbar=0,";
params += "location=0,";
params += "directories=0,";
params += "status=0,";
params += "menubar=0,";
params += "scrollbars=1,";
params += "resizable=0,";
params += "top=50,";
params += "left=50,";

if (p_Width == "null") {
    params += "width=550,";
    params += "height=500";
}
else {
    params += "width=" + p_Width+ ",";
    params += "height=" + p_Height;
}
// close the window to vary the window size
if (typeof(win) == "object" && !win.closed){
    win.close();
}
win = window.open(url, windowName , params);
if (agent.indexOf("Mozilla/2") != -1 && agent.indexOf("Win") == -1) {
    win = window.open(url, windowName , params);
}
if (!win.opener) {
    win.opener = window;
}
// bring the window to the front
win.focus();  
}