- htmlName: Name of the HTML element.
- prefKey: Variable name of the preference the dialog element stands for.
- initValue: The initial value if the element is shown first.
- storePointer: Additional pointer to the variable where to store the entered value.
- size: Size (in characters) of the input line.
- maxlength: The maximum length of the entered text.
- type: unused, but there to be parameter compatible with HTML_storableInput.
- extraHTML: Extra HTML/JavaScript code
- Returns the password, if it's equal in both password edit lines, or false.