<!--
function btnOvr(btn) {
	btn.className+=" over";
	btn.className=btn.className.replace(" clk", "");
}
function btnOut(btn) {
	btn.className=btn.className.replace(" over", "");
	btn.className=btn.className.replace(" clk", "");
}
function btnClk(btn) {
	btn.className+=" clk";
	btn.className=btn.className.replace(" over", "");
}
function setFocus() {
	if (document.getElementById) {
		if (document.getElementById('sn').value == '') {
			document.getElementById('sn').focus();
		} else {
			document.getElementById('pwd').focus();
		}
	}
}
-->