// Detect if browser is Netscape 3 + or IE 4 +
	bName = navigator.appName;
	bVer = parseInt(navigator.appVersion);
    if ((bName == "Netscape" && bVer >= 3) || 
        (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3"; 
    else br = "n2";

    if (br== "n3") { 				

		// Preload images
	
		
		// for the preload page

		top_01_off	 			= new Image();
		top_01_off.src			= "images/top_01_off.gif";
		top_01_on     			= new Image();
		top_01_on.src 			= "images/top_01_on.gif";	
		
		top_02_off	 			= new Image();
		top_02_off.src			= "images/top_02_off.gif";
		top_02_on     			= new Image();
		top_02_on.src 			= "images/top_02_on.gif";	
		
		top_03_off	 			= new Image();
		top_03_off.src			= "images/top_03_off.gif";
		top_03_on     			= new Image();
		top_03_on.src 			= "images/top_03_on.gif";	
		
		top_04_off	 			= new Image();
		top_04_off.src			= "images/top_04_off.gif";
		top_04_on     			= new Image();
		top_04_on.src 			= "images/top_04_on.gif";
	
					
	}
		
	function imgOn(imgName){
		if (br == "n3"){
    	document[imgName].src = eval(imgName + "_on.src");
		}
	}
	function imgOff(imgName) {
    	if (br == "n3") {
		document[imgName].src = eval(imgName + "_off.src");
		}
	}	
	// -->