var app = navigator.appName.toLowerCase();
var ver = navigator.appVersion.toLowerCase();
var ver = parseInt(ver.substring(0, 1));
var ie4 = (app.indexOf("microsoft") != -1 && ver >= 4);
var nn3 = (app.indexOf("netscape") != -1 && ver == 3);
var nn4 = (app.indexOf("netscape") != -1 && ver >= 4);
var scriptAllow = (ie4 || nn3 || nn4);

if (scriptAllow) {
	var linkname = new Array();
	var norm = new Array();
	var over = new Array();
	var imgPos = new Array();

	linkname[0] = "tab1";
	linkname[1] = "tab2";
	linkname[2] = "tab3";
	linkname[3] = "home";
	linkname[4] = "company";
	linkname[7] = "contact";
	linkname[8] = "forgot";

	for (ov = 0; ov < linkname.length; ov++) {
		over[ov] = new Image();
		norm[ov] = new Image();
		norm[ov].src = 'Images/' + linkname[ov] + "0.png";
		over[ov].src = 'Images/' + linkname[ov] + "1.png";
	}
}

function imgOver(name, mover, hl) {
	if (scriptAllow) {
		for (i = 0; i < linkname.length; i++) {
			if (linkname[i] == name) {
				if (mover) {
					hl.firstChild.src = over[i].src;
				} else {
					hl.firstChild.src = norm[i].src;
				}
			}
		}
	}
}