timetasker.js: Fix the "billable" checkbox auto-fill

The checkbox wasn't getting filled in correctly. By some overzealous and
uncaught copy-pasting, I had wrapped the field in the function to
populate a select box. Since this is a checkbox, we want to use its
`.checked` property instead.

Use a timeout also. By default Time Task marks Billable as true/checked.
If the script unchecks the box and then the AJAX select box population
occurs, the check box re-checks itself. Adding a timeout allows it to
remain unchecked if you've set that in the user options.

1 files changed, 4 insertions, 1 deletions

diff --git a/timetasker.js b/timetasker.js
index 31fe526..fb653f3 100644
--- a/timetasker.js
+++ b/timetasker.js
@@ -39,7 +39,10 @@ function timetasker (fields) {
 	}, 500);
 
 	time_0.value = fields.time;
-	populate_select(billable_0, fields.billable ? 't' : 'f');
+
+	window.setTimeout(function() {
+		billable_0.checked = fields.billable;
+	}, 500);
 
 
 	window.setTimeout(function() {