■スクリプト
<HTML> <HEAD> <TITLE>Sample</TITLE> </HEAD> <BODY bgColor="white"> <CENTER> <H1>setTime</H1> </CENTER> <P> <SCRIPT Language="JavaScript"> <!-- myDate = new Date(); alert("(設定前)",myDate.getTime(),"です"); myDate.setTime("-12"); alert("(設定後)",myDate.getTime(),"です"); // --> </SCRIPT> </BODY></HTML>