function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}
window.onload = externalLinks;




if (document.images) 
{
   img1 = new Image();
   img2 = new Image();
   img3 = new Image();
   img4 = new Image();
   img5 = new Image();
   img6 = new Image();
   img7 = new Image();
   img8 = new Image();
   img9 = new Image();
   img10 = new Image();
   img11 = new Image();
   img12 = new Image();

   img1.src = "/images/nav_home_on.gif";
   img2.src = "/images/nav_about_on.gif";
   img3.src = "/images/nav_work_on.gif";
   img4.src = "/images/nav_services_on.gif";
   img5.src = "/images/nav_careers_on.gif";
   img6.src = "/images/nav_srpski_on.gif";
   img7.src = "/images/nav_contact_on.gif";
   img8.src = "/images/title_feature_services_on.gif";
   img9.src = "/images/title_feature_work_on.gif";
   img10.src = "/images/title_feature_about_on.gif";
   img11.src = "/images/nav_ref_1_on.gif";
   img12.src = "/images/nav_ref_2_on.gif";
   
   
   
   
}