browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);

if (browserName == "Netscape" && browserVer >= 3) version = "1";
else {if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version = "1";
      else version = "2";}

if (version == "1") {

                     show1 = new Image();
					 hide1 = new Image();
                     show2 = new Image();
					 hide2 = new Image();
                     show3 = new Image();
					 hide3 = new Image();
                     show4 = new Image();
					 hide4 = new Image();
                     show5 = new Image();
					 hide5 = new Image();					 
                     show1.src = "image/menu_1_1.gif";
                     hide1.src = "image/menu_1_0.gif";
                     show2.src = "image/menu_2_1.gif";
                     hide2.src = "image/menu_2_0.gif";
                     show3.src = "image/menu_3_1.gif";
                     hide3.src = "image/menu_3_0.gif";
                     show4.src = "image/menu_4_1.gif";
                     hide4.src = "image/menu_4_0.gif";					
                     show5.src = "image/menu_5_1.gif";
                     hide5.src = "image/menu_5_0.gif";					 
					 }
					 
function light(imgDocID,imgObjName) {

if (version == "1") {
                     document.images[imgDocID].src = eval(imgObjName + ".src")
                    }                

									 }