function NNCheck(version) {
if ((navigator.appName.indexOf("Netscape") >= 0)
&& (version <= parseInt(navigator.appVersion.substring(0, 3)))) {
return true;
} else {
return false;
}
}

function IECheck(version) {
if ((navigator.appName.indexOf("Microsoft Internet Explorer") >= 0)
&& (version <= parseInt(navigator.appVersion.substring(22, 25)))) {
return true;
} else {
return false;
}
}
if (NNCheck(3) || IECheck(4)) {
	if (document.images) {
		nm_out = new Image(152, 26);nm_out.src = '../img/tab/nm.gif';
		nm_in = new Image(152, 26);nm_in.src = '../img/tab/nm_in.gif';

		md_out = new Image(152, 26);md_out.src = '../img/tab/md.gif';
		md_in = new Image(152, 26);md_in.src = '../img/tab/md_in.gif';

		sfu_out = new Image(152, 26);sfu_out.src = '../img/tab/sfu.gif';
		sfu_in = new Image(152, 26);sfu_in.src = '../img/tab/sfu_in.gif';

		sfms_out = new Image(152, 26);sfms_out.src = '../img/tab/sfms.gif';
		sfms_in = new Image(152, 26);sfms_in.src = '../img/tab/sfms_in.gif';

		se_out = new Image(152, 26);se_out.src = '../img/tab/se.gif';
		se_in = new Image(152, 26);se_in.src = '../img/tab/se_in.gif';

		comp_out = new Image(152, 26);comp_out.src = '../img/tab/comp.gif';
		comp_in = new Image(152, 26);comp_in.src = '../img/tab/comp_in.gif';

		book_out = new Image(152, 26);book_out.src = '../img/tab/book.gif';
		book_in = new Image(152, 26);book_in.src = '../img/tab/book_in.gif';
	}
}

function tab_pika(id,name){
	if (NNCheck(3) || IECheck(4)) {
		if (document.images) {document.images[id].src=eval(name+".src"); }
	}
}