var browser     = '';
var version     = '';
var entrance    = '';
var cond        = '';
// BROWSER
if (browser == ''){
if (navigator.appName.indexOf('Microsoft') != -1)
browser = 'IE'
else if (navigator.appName.indexOf('Netscape') != -1)
browser = 'Netscape'
else browser = 'NN';
}
// VERSION?
if (version == ''){
version= navigator.appVersion;
paren = version.indexOf('(');
whole_version = navigator.appVersion.substring(0,paren-1);
version         = parseInt(whole_version);
}
// BROWSER & VERSION
if (browser == 'IE' && version >= 4) entrance = 'yes';
if (browser == 'IE' && version < 4) entrance = 'no';
if (browser == 'Netscape' && version >= 2.02) entrance = 'yes';
if (browser == 'Netscape' && version < 2.02) entrance = 'no';
if (entrance=='yes'){
name0a=new Image;name0a.src="images/hn-about-1.gif";
name0b=new Image;name0b.src="images/hn-about-2.gif";
name0c=new Image;name0c.src="images/hn-about-3.gif";
name1a=new Image;name1a.src="images/hn-02-1.gif";
name1b=new Image;name1b.src="images/hn-02-2.gif";
name1c=new Image;name1c.src="images/hn-02-3.gif";
name2a=new Image;name2a.src="images/hn-76-1.gif";
name2b=new Image;name2b.src="images/hn-76-2.gif";
name2c=new Image;name2c.src="images/hn-76-3.gif";
name3a=new Image;name3a.src="images/hn-78-1.gif";
name3b=new Image;name3b.src="images/hn-78-2.gif";
name3c=new Image;name3c.src="images/hn-78-3.gif";
name4a=new Image;name4a.src="images/hn-91-1.gif";
name4b=new Image;name4b.src="images/hn-91-2.gif";
name4c=new Image;name4c.src="images/hn-91-3.gif";
name5a=new Image;name5a.src="images/hn-fa-1.gif";
name5b=new Image;name5b.src="images/hn-fa-2.gif";
name5c=new Image;name5c.src="images/hn-fa-3.gif";
name6a=new Image;name6a.src="images/hn-fut-1.gif";
name6b=new Image;name6b.src="images/hn-fut-2.gif";
name6c=new Image;name6c.src="images/hn-fut-3.gif";
name7a=new Image;name7a.src="images/hn-nl-1.gif";
name7b=new Image;name7b.src="images/hn-nl-2.gif";
name7c=new Image;name7c.src="images/hn-nl-3.gif";
name8a=new Image;name8a.src="images/hn-td-1.gif";
name8b=new Image;name8b.src="images/hn-td-2.gif";
name8c=new Image;name8c.src="images/hn-td-3.gif";
name9a=new Image;name9a.src="images/hn-vol-1.gif";
name9b=new Image;name9b.src="images/hn-vol-2.gif";
name9c=new Image;name9c.src="images/hn-vol-3.gif";
}
function lighten(imgName) {
if (entrance == 'yes'){
imgOn = eval(imgName + 'b.src');
document[imgName].src = imgOn;
}
}
function darken(imgName) {
if (entrance == 'yes'){
imgOff = eval(imgName + 'a.src');
document[imgName].src = imgOff;
}
}
function darken2(imgName) {
if (entrance == 'yes'){
imgClick = eval(imgName + 'c.src');
document[imgName].src = imgClick;
}
}