NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
ver4 = (NS4 || IE4) ? 1 : 0;

browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);

var allpicsrc = new Array();
var timeout;

if (browser_name == "Netscape" && browser_version >= 3.0) { roll = 'true'; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0) { roll = 'true'; }
else { roll = 'false'; }

function on(img) { if (roll == 'true' && img != '') { document.images[img].src = '/images/' + img + '_a.gif'; } }
function off(img) { if (roll == 'true' && img != '') { document.images[img].src = '/images/' + img + '.gif'; } }

//Preload images

if (roll == 'true')
{

 DF_menu_about_us=new Image();
 DF_menu_about_us.src='/images/DF_menu_about_us_a.gif';

 DF_menu_articles=new Image();
 DF_menu_articles.src='/images/DF_menu_articles_a.gif';

 DF_menu_news=new Image();
 DF_menu_news.src='/images/DF_menu_news_a.gif';

 DF_menu_vaccination=new Image();
 DF_menu_vaccination.src='/images/DF_menu_vaccination_a.gif';

 DF_menu_products=new Image();
 DF_menu_products.src='/images/DF_menu_products_a.gif';

}

//DF_menu_productions=new Image();
//DF_menu_productions.src='images/DF_menu_productions_a.gif';

//Done by TAiNT
//Edit by Alex-FX

//Add this for HTML Cod
//<a href="#" onMouseOver="on('image_mane');" onMouseOut="off('image_name')"><img name="image_name" src="images/image_name.gif"></a>