JS to open serach results in a new tab/window.

Could you post an example of your window.open() statement. It works in general. Probably your browser doesn't allow popup windows?

Hum may be I did it wrong. This is what I tried.
document.location = window.open("http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full");

document.location is a string containing URL

 window.open("http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full");
returns window object.

So, statement
document.location = window.open("http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full");
is not correct

However, window.open should work before and window should appear. What do you mean does not work? You don't see new window or it appears and does not contain expected result?

It opens a new window with results, but on the current window, it also give a error saying "HTTP Error 404.0 - Not Found

The resource you are looking for has been removed, had its name changed, or is temporarily unavailable."

how should I fix this? Thanks.

Well, command

 window.open("http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full");

opens a new windows and fills it with result, it returns windows object. You assign it to current page location property and it reloads current page with result of window object conversion to string. It is not URL, and that's why you are getting 404 error.

just leave statement
 window.open("http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full");

instead of

document.location = window.open("http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full");

Thanks! It works. On click is now perfect. On enter however is now opening an extra window with my home page. Any tips? Thanks.

Then I need more details. Post HTML code, where you embedded this JS statement.

Sure, see attached.
FullCode.txt

remove  'target="_blank"' from the form description. This is the reason of the last problem. Form is getting submitted.

And, I guess, you should replace in searchthis ()

document.location = "http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full";

with

window.open("http://query.nytimes.com/search/query?query=" + document.search_form.search.value + "&date_select=full");

ok, I made those changes, but still same behavior on IE and Firefox. Chrome Ok.

That did it! Thanks for all the help!