Java Reference
In-Depth Information
var date = parseInt(form.txtDate.value)
var year = parseInt(form.txtYear.value)
if (isNaN(date) || isNaN(year))
{
alert(“Please enter a valid whole number”);
}
else
{
if (date < 1 || date > 31)
{
alert(“Day of the month must be between 1 and 31”);
}
else
{
userDate = date + “ “;
userDate = userDate +
form.selMonth.options[form.selMonth.selectedIndex].value;
userDate = userDate + “ “ + year;
var dateThen = new Date(userDate);
alert(days[dateThen.getDay()]);
}
}
}
</script>
</head>
<body>
<p>Find the day of your birth</p>
<p>
<form name=”form1”>
<input type=”text” name=”txtDate” size=”2” maxlength=”2”>
<select name=selMonth>
<option selected value=”Jan”>Jan</option>
<option selected value=”Feb”>Feb</option>
<option selected value=”Mar”>Mar</option>
<option selected value=”Apr”>Apr</option>
<option selected value=”May”>May</option>
<option selected value=”Jun”>Jun</option>
<option selected value=”Jul”>Jul</option>
<option selected value=”Aug”>Aug</option>
<option selected value=”Sept”>Sept</option>
<option selected value=”Oct”>Oct</option>
<option selected value=”Nov”>Nov</option>
<option selected value=”Dec”>Dec</option>
</select>
<input type=”text” name=”txtYear” size=”4” maxlength=”4” />
<br>
<input type=”button” value=”Day of the week”
onclick=”dayOfWeek()” name=”button1” />
</form>
</p>
</body>
</html>
Save this as
ch10_q2.htm
.
