Dynamic Help in Web Forms

Many Web application designers strive to reduce the amount of instructional text that appears in the user interfaces they create. A likely part of their motivation is the perception that, if explaining how to use something requires too much instruction, it probably isn't that easy to use and, therefore, has room for improvement in its design. Another motivating factor might be the tendency for people not to read any on-screen instructions, just like they tend not to read product manuals. This type of thinking also applies to Web forms. When possible, designers strive to utilize a minimal amount of text to explain how users should fill in the different input fields in a form.

Wroblewski, Luke. UXmatters (2007). Design>Web Design>Forms>Help

Greasemonkey Form Help

Two relatively common usability problems with web forms are textareas that are too small, and dropdown lists being clumsy to use for some people. This Greasemonkey user script automatically assigns links above each textarea so that it can be resized, and automatically expands dropdown lists. The script is easily configurable, so you can choose not to expand dropdown lists, or determine the maximum number of items you want displayed in a dropdown list, or have graphic or text links for resizing textarea form controls.

Lemon, Gez. Juicy Studio (2006). Design>Web Design>Forms>Help