<HTML>
<HEAD>
<TITLE> New Document </TITLE>
</HEAD>
<BODY>
開始時間：<INPUT TYPE="text" NAME="date_1"><br>
結束時間：<INPUT TYPE="text" NAME="date_2">
<input type="button" onClick="xx()" value="判斷">
</BODY>
</HTML>
<SCRIPT LANGUAGE="JavaScript">
function xx(){
?var a=date_1.value;
?var b=date_2.value;
?var miStart = Date.parse(a.replace(/\-/g, '/'));
?var miEnd = Date.parse(b.replace(/\-/g, '/'));
?var result = (miEnd-miStart)/(1000*24*3600);
//?alert(result);
?if(result>30){
??alert("在一個月外");
??return false;
?}else
??{
???alert("在一個月內");
???}
}
</SCRIPT>