Changing Dates

LewisReeder · Aug 8, 2005

For my application I would like to add validation so that when a user enters a start date, the end date will automatically calculate and generate in the "Week End" field. The week end date will always be 7 days later. The problem arises when the user enters a starting date that is at the end of the month (i.e. 08/27/2005). Since there is no such date as 08/34/2005, how could I have the dates wrap to the next month(09/03/2005)? Someone once told me there was something similar to a "serial number" for every date. Is this true? I have tried to cut the string apart and add the days but the validation will be very tedious and inefficient. Any help would be greatly appreciated.

Thanks,
Lewis

kaht · Aug 8, 2005

Use javascript date objects and the accompanying methods:

Code:

<script language="javascript">
function addWeek(str) {
   var dte = new Date(str);
   dte.setDate(dte.getDate() + 7);
   document.forms['blah'].elements['end'].value = (dte.getMonth() + 1) + "/" + dte.getDate() + "/" + dte.getFullYear();
}
</script>
<body>
<form name="blah">
<input type="text" name="txt" value="08/27/2005">Starting Week<br>
<input type="text" name="end">Ending Week<br>
<input type="button" value="add week" onclick="addWeek(document.forms['blah'].elements['txt'].value)">
</form>
</body>

-kaht

...looks like you don't have a job, so why don't you get out there and feed Tina.

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Changing Dates

LewisReeder

IS-IT--Management

kaht

Programmer

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