// Define Variables

	var rolloversOK = 0;
	
// Check browser version being used...
	browserName = navigator.appName;
	browserVer = parseInt(navigator.appVersion);
	if (browserName == "Netscape" && browserVer >= 3) rolloversOK = 1;
	else if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) rolloversOK = 1;
// Pre-load rollover buttons
		
		if (rolloversOK) { 
		button1on= new Image(197,42)
		button1on.src = "img/scn.jpg"
		
				
		button2on= new Image(197,42)
		button2on.src = "img/film.gif"
		
		button3on= new Image(197,42)
		button3on.src = "img/test.jpg"
		
		button4on= new Image(197,42)
		button4on.src = "img/book.jpg"
		
		button6on= new Image(197,42)
		button6on.src = "img/service.jpg"			
	
   }
// Swap rollover buttons
	function buttonOn (imgName) {
    	if (rolloversOK) {
    	  eval ("document [imgName].src = " + imgName + "on.src");
    	}
	}
	function buttonOff (imgName) {
    	if (rolloversOK) {
    	  eval ("document [imgName].src = " + imgName + "off.src");
    	}
	}