How to get time difference between 2 dates in client script

[codedude]

I have 2 datetime fields and also have a duration (single line of text). I am trying to compute the difference between the start and end date and put the difference in the duration field.

I am having a difficult time figuring this out via client script, this is on a service catalog item. I tried to use the "gs" api, but it frowns upon that in client scripts. I then tried this and still no luck:

var startDate = g_form.getValue("start_date");

var endDate = g_form.getValue("end_date");

alert(startDate + " ," + endDate);

var dc = new DurationCalculator();

var dur = dc.calcScheduleDuration(startDate, endDate);

alert(dur);

Any advice?

[Community Alums]

What are your alerts returning? Try something like this:

var sd = g_form.getValue("start_date");
var ed = g_form.getValue("end_date");
var startDate = new GlideDateTime(sd);
var endDate = new GlideDateTime(ed);
var dif = gs.dateDiff(startDate, endDate, false);
alert(dif);

Cheers,

Tim

[codedude]

I am unable to use "gs" in client scripts..... I get this error :

The object "gs" should not be used in client scripts.

[Community Alums]

Ah, right, sorry...

[codedude]

Are there any other options?