Question

I’m trying to write a form that will disable at a certain time and I want that to happen using javascript. However, since people can easily change the date on their computer, I was hoping to use the date provided by Apache as the comparison date. I tried some simple stuff but the SSI echoed date would not compare against the javascript date. My code is below. Any ideas?

var currenttime = '<!--#config timefmt="%a %b %d %Y %H:%M:%S"--><!--#echo var="DATE_LOCAL" -->'
var currenttime = currenttime+' GMT-0400 (EDT)';

var disableDate = new Date();
disableDate.setFullYear(2011,9,18);
disableDate.setHours(17,0,0,0);

if(disableDate < currenttime)
    $('#date_field').attr("disabled", true);

Answer 1

You are comparing a string to a date. Convert your currenttime string into a Date object first:

var currenttime = '<!--#config timefmt="%a %b %d %Y %H:%M:%S"--><!--#echo var="DATE_LOCAL" --> GMT-0400 (EDT)';
currenttime = new Date(currenttime);

That said, try instead to use conditional SSI to utterly disable the form server-side instead of getting JavaScript to do it for you.