<script language="javascript">  
var myTime = setTimeout("Timeout()", 60000);  
function resetTime() {  
    clearTimeout(myTime);  
    myTime = setTimeout('Timeout()', 60000);  
} 
function Timeout() {  
    alert("您的登錄已超時, 請點確定后重新登錄!");  
    document.location.href='login.jsp';  
}  
document.documentElement.onkeydown=resetTime; 
document.doocumentElement.onclick=resetTime; 
</script>