Select All Text This is some text. This is more text. This is additional text. This is the last text.

The link or button to activate the selection of text can be anywhere. In this example, "SelectForm" is the name of the form, and "SampleTextArea", the name of the textarea tag to select and highlight.

Select All Textarea Text

This is a JavaScript routine that can be embedded in most scripts that present data to the user in a textarea box. It allows the user to highlight and select all the text in the textarea box and to copy it elsewhere.
View the source.