var netscape = 0;
	goodIE = 0;
	 n=50;
     na=50;
browserName = navigator.appName.substring(0,8);
browserVer = parseFloat(navigator.appVersion);

if (browserName == "Netscape" && browserVer >= 3)
{ netscape = 1; }
if (browserName == "Microsof" && browserVer == 4)
{ goodIE = 1; }

if (netscape || goodIE) {
 {
	 Img= new Array(n);
	for(i=1; i<=n; i++) { Img[i] = new Image() };
   Img_r=new Array(n);
	for(i=1; i<=na; i++) { Img_r[i] = new Image() };
	
	Img[1].src = "img/b_about.gif";
	Img[2].src = "img/b_portfolio.gif";
	Img[3].src = "img/b_services.gif";
	Img[4].src = "img/b_contacts.gif";
	Img[5].src = "img/b_ru.gif";
	Img[6].src = "img/b_eng.gif";
	Img[7].src = "img/b_flash.gif";
	Img[8].src = "img/b_dbms.gif";
	Img[9].src = "img/b_fs.gif";
	Img[10].src = "img/b_details.gif";
	Img[11].src = "img/b_details.gif";
	Img[12].src = "img/b_details.gif";
	Img[13].src = "img/b_details.gif";
	Img[14].src = "img/b_details.gif";
	Img[15].src = "img/b_details.gif";
	Img[16].src = "img/spacer.gif";
	Img[17].src = "img/spacer.gif";
	Img[18].src = "img/spacer.gif";
	Img[19].src = "img/spacer.gif";

	Img_r[1].src = "img/ba_about.gif";
	Img_r[2].src = "img/ba_portfolio.gif";
	Img_r[3].src = "img/ba_services.gif";
	Img_r[4].src = "img/ba_contacts.gif";
	Img_r[5].src = "img/ba_ru.gif";
	Img_r[6].src = "img/ba_eng.gif";
	Img_r[7].src = "img/ba_flash.gif";
	Img_r[8].src = "img/ba_dbms.gif";
	Img_r[9].src = "img/ba_fs.gif";
	Img_r[10].src = "img/ba_details.gif";
	Img_r[11].src = "img/ba_details.gif";
	Img_r[12].src = "img/ba_details.gif";
	Img_r[13].src = "img/ba_details.gif";
	Img_r[14].src = "img/ba_details.gif";
	Img_r[15].src = "img/ba_details.gif";
	Img_r[16].src = "img/bt_prev.gif";
	Img_r[17].src = "img/bt_next.gif";
	Img_r[18].src = "img/btr_prev.gif";
	Img_r[19].src = "img/btr_next.gif";

 }}                     

  function imgover(trg,imgname) {
{if (netscape || goodIE){
	 document.images[trg].src=Img_r[imgname].src;
 }}}
  
  function imgout(trg,imgname)  {
{if (netscape || goodIE){
	 document.images[trg].src=Img[imgname].src; 
 }}}