browserName = navigator.appName;   // detect browser 
         browserVer = parseInt(navigator.appVersion);
             if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
		 else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
             else browserVer = "2";

//preload images:
if (browserVer == 1) {
 
   overview = new Image(150,150);
   overview.src = "images/overview_img.jpg";
	
	bio = new Image(150,150);
    bio.src = "images/bioenergy_img.jpg";
    
    	solutions = new Image(150,150);
    solutions.src = "images/solutions_img.jpg";
    
    people = new Image(150,150);
    people.src = "images/people_img.jpg";

    news = new Image(150,150);
    news.src = "images/news_img.jpg";

	other = new Image(150,150);
	other.src = "images/other_img.jpg";

    rick = new Image(150,150);
    rick.src = "images/people_rick.jpg";

    naji = new Image(150,150);
    naji.src = "images/people_naji.jpg";

    ailton = new Image(150,150);
    ailton.src = "images/people_ailton.jpg";

    dan = new Image(150,150);
    dan.src = "images/people_dan.jpg";

    laurent = new Image(150,150);
    laurent.src = "images/people_laurent.jpg";

}

function hiLite(imgDocID, imgObjName, imgDocID2, imgObjName2) {
if (browserVer == 1) {
	document.images[imgDocID].src = eval(imgObjName + ".src");
	
}}