browserSmart = false;

if (parseInt(navigator.appVersion) >= 3 ) {
	browserSmart = true;
}

if (browserSmart) {

	buttonloff = new Image(33, 33);
	buttonloff.src = "buttons/bl_off.gif";
	buttonlon = new Image(33, 33);
	buttonlon.src = "buttons/bl_on.gif";
	buttonldown = new Image(33, 33);
	buttonldown.src = "buttons/bl_down.gif";

	buttonhoff = new Image(33, 169);
	buttonhoff.src = "buttons/bh_off.gif";
	buttonhon = new Image(33, 169);
	buttonhon.src = "buttons/bh_on.gif";
	buttonhdown = new Image(33, 169);
	buttonhdown.src = "buttons/bh_down.gif";

	buttonroff = new Image(33, 33);
	buttonroff.src = "buttons/br_off.gif";
	buttonron = new Image(33, 33);
	buttonron.src = "buttons/br_on.gif";
	buttonrdown = new Image(33, 33);
	buttonrdown.src = "buttons/br_down.gif";

}

function buttonOver(buttonName) {
	if (browserSmart) {
		document [buttonName].src=eval(buttonName+"on.src");
	}
}

function buttonOut(buttonName) {
	if (browserSmart) {
		document [buttonName].src=eval(buttonName+"off.src");
	}
}
function buttonDown(buttonName) {
	if (browserSmart) {
		document [buttonName].src=eval(buttonName+"down.src");
	}
}
function buttonUp(buttonName) {
	if (browserSmart) {
		document [buttonName].src=eval(buttonName+"on.src");
	}
}