<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>标题页</title>
</head>
<body>
<SCRIPT LANGUAGE="LiveScript">
function checkNum(str, min, max) { //检测输入的数值
if (str == "") {
alert("请输入有效的值.");
return false;
}
for (var i = 0; i < str.length; i++) {
var ch = str.substring(i, i + 1);
if (ch < "0" || ch > "9") {
alert("请输入数值.");
return false;
}
}
var val = parseInt(str, 10);
if ((val < min) || (val > max)) {
alert("请输入数值从 1 到 "+max+".");
return false;
}
return true;
}
function pushbutton(form){
//检查年月日的有效性
if ((checkNum(form.day.value,1,31)) && (checkNum(form.month.value,1,12)) && (checkNum(form.year.value,0,2500))){
var cur_day = parseInt(form.day.value,10); //获取日
var cur_month = parseInt(form.month.value,10); //获取月
var cur_year = parseInt(form.year.value,10); //获取年
}
getDayOfWeek(cur_year+"-"+cur_month+"-"+cur_day); //调用判断星期几的方法
}
function getDayOfWeek(dayValue){
var day = new Date(Date.parse(dayValue.replace(/-/g, '/'))); //将日期值格式化
var today = new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六"); //创建星期数组
alert( today[day.getDay()]) //返一个星期中的某一天，其中0为星期日
}
</SCRIPT>
<FORM NAME = "calDay">
<PRE><B>日:</B>
<INPUT TYPE="num" name="day" onChange="if (!checkNum(this.value, 1, 31)){this.focus();this.select();} else {}" size=10 value="">
<B>月:</B>
<INPUT TYPE="num" name="month" onChange="if (!checkNum(this.value, 1, 12)){this.focus();this.select();} else {}" size=10 value="">
<B>年:</B>
<INPUT TYPE="num" name="year" onChange="if (!checkNum(this.value, 0, 2500)){this.focus();this.select();} else {}" size=10 value="">
<INPUT TYPE="button" name="Find_Out" value="计算星期几" onclick="pushbutton(this.form)"></PRE>
</FORM>
</body>
</html>
