function getVersion() { return Math.round(parseFloat(navigator.appVersion) * 1000); }

function browserOK() {
       if (navigator.appName.substring(0,8) == "Netscape") {
               if (getVersion() >= 3000) {return true;}
       } else if (navigator.appName.substring(0,9) == "Microsoft") {
               if (getVersion() >= 4000) {return true;}
       }
       return false;
}

function init() {
       if (browserOK()) {
               images = new Array();
               for (i=1; i<5; i++) {images[i] = new Image();}
               images[1].src = "/atf/cf/{94B1428E-B644-41C4-87E8-8424A94ABF29}/menu_provider_on.gif";
               images[2].src = "/atf/cf/{94B1428E-B644-41C4-87E8-8424A94ABF29}/menu_guide_on.gif";
               images[3].src = "/atf/cf/{94B1428E-B644-41C4-87E8-8424A94ABF29}/menu_depts_on.gif";
               images[4].src = "/atf/cf/{94B1428E-B644-41C4-87E8-8424A94ABF29}/menu_news_on.gif";
       }
}

function change(grx, num, flag) {
       if (browserOK()) {
            if (flag) 
				{str1 = "/atf/cf/{94B1428E-B644-41C4-87E8-8424A94ABF29}/menu_" + grx + "_on.gif";} 
            else 
				{str1 = "/atf/cf/{94B1428E-B644-41C4-87E8-8424A94ABF29}/menu_" + grx + ".gif";}
               
            if (num == 1) {document.menu1.src = str1;} 
			if (num == 2) {document.menu2.src = str1;}
			if (num == 3) {document.menu3.src = str1;}
			if (num == 4) {document.menu4.src = str1;}
       }
}