browserName=navigator.appName;
browserVer=parseInt(navigator.appVersion);
if (browserName=="Netscape" && browserVer >= 3) version="Ok";
        else if (browserName=="Microsoft Internet Explorer" && browserVer >= 4) version="Ok";
                else version="Err";
if (version=="Ok") {
   				   
   		company_off=new Image(225,26);
        company_off.src="images/company.gif";
        company_on=new Image(225,26);
        company_on.src="images/company2.gif";
		
		en_off=new Image(225,17);
        en_off.src="images/en.jpg";
        en_on=new Image(225,17);
        en_on.src="images/en2.jpg";
		
		gr_off=new Image(225,17);
        gr_off.src="images/gr.jpg";
        gr_on=new Image(225,17);
        gr_on.src="images/gr2.jpg";
		
		products_off=new Image(225,26);
        products_off.src="images/products.gif";
        products_on=new Image(225,26);
        products_on.src="images/products2.gif";
		
		contact_off=new Image(225,26);
        contact_off.src="images/contact.gif";
        contact_on=new Image(225,26);
        contact_on.src="images/contact2.gif";
		
        }
function UrlOn(ImageName) {
        if (version=="Ok") {
        image_on=eval(ImageName + "_on.src");
        document.images[ImageName].src=image_on;
        }}
function UrlOff(ImageName) {
        if (version=="Ok") {
        document.images[ImageName].src=eval(ImageName + "_off.src");
        }}