Question

How do I make a bookmarklet that places something into a field and submits the form?

I think along these lines:

1)var p = document.open(http://site.com/form.htm)

2) var h = p.innerHTML

3) var f = h.getElementById(‘formfield’)

now how do I get the URL of the current page to become the value for ‘formfield’?

Answer 1

var p = document.open(http://site.com/form.htm)

This won’t work. You may be thinking of window.open. If you use window.open, it will only be useful for your purposes if the bookmarklet is run from the same domain. If run from any other domain, it will open the window, but you won’t be able to do anything else with the document in that newly opened window.

var h = p.innerHTML

This does nothing helpful in your case. It just returns a string of text.

var f = h.getElementById('formfield')

This is not correct because it uses “h”, which isn’t correct. What you probably want is this…

var w = window.open('http://site.com/form.htm');
// need code that will check if window is done loading before you use next line!
w.document.getElementById('formfield').value = window.location;

If you use the bookmarklet on the page with the form, you only need this:

document.getElementById('formfield').value = window.location;

If you want to open the window to another domain, enter a form value, and submit the form – This can not be done with a bookmarklet. A bookmarklet faces the same restrictions as any other javascript in a page. This is for security to prevent any web page on the internet from trying to take control of your browser and do things on other sites as you. Your only reasonable option in this case would be to create/use a browser addon/extension.