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Dates and Military time validation needed

Hi,

I have two fields with dates and times in the format:

03/20/2006 16:07 (military times)

I need to ensure the following

That field 1 cannot be more than one day earlier than field 2.

How can I do this using JavaScript?

Thx

-ws

SirCrofty

Where elem1 is the id of the first date/time field and and elem2 is the id of second date/time field. Should return true if the difference between the two dates is greater than a day by even a couple minutes.

function showDateDiff(elem1, elem2)
{
var d1 = new Date(Date.parse(document.getElementById(elem1).value));
var d2 = new Date(Date.parse(document.getElementById(elem2).value));
var diff = (d1-d2)/86400000;

if (Math.abs(diff) > 1) alert("true");
}

ASKER CERTIFIED SOLUTION

Michel Plungjan

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el_dios

I think this would be simpler:

var d1= //field1
var d2= //field2

var temp = new Date(d1);
temp.setDate(d1.getDate()+1);
if(temp>d2) return false;

Michel Plungjan

Yes it would - if you made a date of d2 too.

More way to skin a cat:

aDay = 86400000;
function isMoreThanADay(strDate1,strDate2) {
var d1 = new Date(strDate1).getTime();
var d2 = new Date(strDate2).getTime();
return (d2-d1)>aDay
}
function validate(theForm) {
if (isMoreThanADay(theForm.date1.value,theForm.date2.value) ) {
.
.