window.onerror = null;

var ver4 = (navigator.appVersion.charAt(0) >= "4");
var NN4  = ver4 && (navigator.appName.charAt(0) == "N");
var IE4  = ver4 && (navigator.appName.charAt(0) == "M");
var NN3  = ((navigator.appVersion.charAt(0) == "3") && (navigator.appName.charAt(0) == "N"));

if(NN3 || NN4 || IE4){
	var img_b = new Array();
	var img_c = new Array();
	img_b[0] = new Image(); img_b[0].src = "images/mark_arrow0.gif"
	img_b[1] = new Image(); img_b[1].src = "images/mark_arrow1.gif"
	img_c[0] = new Image(); img_c[0].src = "images/mark_star0.gif"
	img_c[1] = new Image(); img_c[1].src = "images/mark_star1.gif"
}

function B_in(nam,num){
	if(NN3 || NN4 || IE4) document.images[nam].src = img_b[num].src;
}

function C_in(nam,num){
	if(NN3 || NN4 || IE4) document.images[nam].src = img_c[num].src;
}

function B_out(nam,num){
	if(NN3 || NN4 || IE4) document.images[nam].src = img_b[num].src;
	return false;
}

function C_out(nam,num){
	if(NN3 || NN4 || IE4) document.images[nam].src = img_c[num].src;
	return false;
}