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="i/but_view_cart.gif";
name0b=new Image;name0b.src="i/but_view_cart_h.gif";
name1a=new Image;name1a.src="i/but_checkout.gif";
name1b=new Image;name1b.src="i/but_checkout_h.gif";
name2a=new Image;name2a.src="i/but_how_to_order.gif";
name2b=new Image;name2b.src="i/but_how_to_order_h.gif";

name3a=new Image;name3a.src="i/but_home.gif";
name3b=new Image;name3b.src="i/but_home_h.gif";
name4a=new Image;name4a.src="i/but_about.gif";
name4b=new Image;name4b.src="i/but_about_h.gif";
name5a=new Image;name5a.src="i/but_contact.gif";
name5b=new Image;name5b.src="i/but_contact_h.gif";
name6a=new Image;name6a.src="i/but_feedback.gif";
name6b=new Image;name6b.src="i/but_feedback_h.gif";

name7a=new Image;name7a.src="i/site_but_promotions.gif";
name7b=new Image;name7b.src="i/site_but_promotions_h.gif";
name8a=new Image;name8a.src="i/site_but_specials.gif";
name8b=new Image;name8b.src="i/site_but_specials_h.gif";
name9a=new Image;name9a.src="i/site_but_decals_request.gif";
name9b=new Image;name9b.src="i/site_but_decals_request_h.gif";
name10a=new Image;name10a.src="i/site_but_join_as_dealer.gif";
name10b=new Image;name10b.src="i/site_but_join_as_dealer_h.gif";
name11a=new Image;name11a.src="i/site_but_forum.gif";
name11b=new Image;name11b.src="i/site_but_forum_h.gif";
name12a=new Image;name12a.src="i/site_but_faq.gif";
name12b=new Image;name12b.src="i/site_but_faq_h.gif";
name13a=new Image;name13a.src="i/site_but_tips_and_tricks.gif";
name13b=new Image;name13b.src="i/site_but_tips_and_tricks_h.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 + 'b.src');
document[imgName].src = imgClick;
}
}