Javascript date calculation - the date 7 days ago???

this will be a breeze for most of you! but im a total dummy when it comes to scripting! I have the following script..

function initdt(mf) {
var t = new Date();
var e = new Date();
mf.SD.value = t.getDate();
mf.SM.value = t.getMonth() + 1;
mf.SY.value = t.getFullYear();
mf.ED.value = e.getDate();
mf.EM.value = e.getMonth() + 1;
mf.EY.value = e.getFullYear();
}

i want "t" to be the date 7 days ago and "e" to be the date yesterday. Its to populate a couple of date dropdowns that I have set up. Can sombody add in the needed code?

Cheers people!
goldsmithwilliamsAsked:
Who is Participating?
 
knightEknightConnect With a Mentor Commented:
var t = new Date();
t.setDate( t.getDate()-7 );

var e = new Date();
e.setDate( e.getDate()-1 );
0
 
Amritpal SinghCommented:
0
 
goldsmithwilliamsAuthor Commented:
It works to an extent, my dropdowns for the two dates now show the correct day and years but the months are now blank? it work beforehand, but they both defaulted to todays date?? any ideas? cheers  knightEknight!!

<script language="JavaScript">
function initdt(mf) {
var t = new Date();
t.setDate( t.getDate()-7 );
var e = new Date();
e.setDate( e.getDate()-1 );
mf.SD.value = t.getDate();
mf.SM.value = t.getMonth() + 1;
mf.SY.value = t.getFullYear();
mf.ED.value = e.getDate();
mf.EM.value = e.getMonth() + 1;
mf.EY.value = e.getFullYear();
}
</script>
0
 
goldsmithwilliamsAuthor Commented:
sorry my mistake! i had 01,02,03,04 as the values for the months! it wont work unles i have 1,2,3,4 etc!!

it works now! cheers!!!
0
 
knightEknightCommented:
dropdowns?  can you show the code for that?
You may need to do this:

mf.SM.value = (t.getMonth() + 1);
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.