// std_menu.js
// preload standard menu images
// process rollovers

function open_pop(url) {
	jpegwindow = window.open(url,"jpegwindow",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=680,height=300');
}

bName = navigator.appName;

bVer = parseInt(navigator.appVersion);
if ((bName == "Netscape" && bVer >= 3) ||
	(bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3";

else br = "n2";

// Create image objects, preload all active and inactive images.

if (br== "n3") {

	// top menu
	img1on = new Image();
	img1on.src = "images/top1aon.gif";
	img2on = new Image();
	img2on.src = "images/top2on.gif";
	img3on = new Image();
	img3on.src = "images/top3on.gif";
	img4on = new Image();
	img4on.src = "images/top4on.gif";
	img5on = new Image();
	img5on.src = "images/top5on.gif";
	img6on = new Image();
	img6on.src = "images/top6on.gif";
	
	img1off = new Image();
	img1off.src = "images/top1a.gif";
	img2off = new Image();
	img2off.src = "images/top2.gif";
	img3off = new Image();
	img3off.src = "images/top3.gif";
	img4off = new Image();
	img4off.src = "images/top4.gif";
	img5off = new Image();
	img5off.src = "images/top5.gif";
	img6off = new Image();
	img6off.src = "images/top6.gif";

	
	// bottom menu
	img7on = new Image();
	img7on.src = "images/bot1on.jpg";
	img8on = new Image();
	img8on.src = "images/bot2on.jpg";
	img9on = new Image();
	img9on.src = "images/bot3on.jpg";
	img10on = new Image();
	img10on.src = "images/bot4on.jpg";	

	img7off = new Image();
	img7off.src = "images/bot1.jpg";
	img8off = new Image();
	img8off.src = "images/bot2.jpg";
	img9off = new Image();
	img9off.src = "images/bot3.jpg";
	img10off = new Image();
	img10off.src = "images/bot4.jpg";	

	
	// left menu images
	img11on = new Image();	// Speakers
	img11on.src = "images/left1on.gif";	
	img12on = new Image();	// Amplifiers
	img12on.src = "images/left2on.gif";
	img13on = new Image();	// Subwoofers
	img13on.src = "images/left3on.gif";

	img11off = new Image();
	img11off.src = "images/left1.gif";	
	img12off = new Image();
	img12off.src = "images/left2.gif";
	img13off = new Image();
	img13off.src = "images/left3.gif";		
}

function imgAct(imgName) {
	if (br == "n3") {
		document[imgName].src = eval(imgName + "on.src");
	}
}

function imgInact(imgName) {
	if (br == "n3") {
		document[imgName].src = eval(imgName + "off.src");
	}
}