
The Complete Idiot's HTML Tag Reference
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<INPUT> (RADIO)
Creates an radio button control that the user can activate in a form.
Support:
-
Notes:
- Radio buttons always come in groups of two or more, and the user can only activate one button in the group at a time.
- All related radio buttons must use the same name.
Attributes:
- ACCESSKEY
= "Text (single character)"
A character to use as a keyboard shortcut for selecting the control.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Notes:
-
The access key is invoked by using it as a key combination. For example, if you specify ACCESSKEY="P", then the user invokes the key by pressing Alt+P (Windows) or Cmd+P (Mac).
- CHECKED
When present, displays the radio button as checked.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
2.0 and later |
1.0 and later |
1.0 and later |
- CLASS
= "Text"
The style sheet class used by the tag.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
4.0 and later |
Notes:
-
You can specify two or more classes; be sure to separate each class name with a space.
- DISABLED
Prevents the user from being able to click the control.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
- ID
= "Text"
An alphanumeric string that uniquely identifies the tag.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
4.0 and later |
Notes:
-
Although you can use letters and numbers for the ID, the first character must be a letter.
- LANG
= "Text"
The language used by the tag's attribute values and text content.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
- NAME
= "Text"
The name of the control.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
2.0 and later |
1.0 and later |
1.0 and later |
Notes:
-
The NAME attribute enables scripts to work with this control.
- Again, all related radio buttons must use the same name. That name must be different from all other names used within the form.
- STYLE
= "Text"
The style or styles to use with the tag.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
4.0 and later |
Notes:
-
If you enter multiple style properties, separate each one with a semi-colon (;).
- TABINDEX
= Positive integer
The control's position with the page's tabbing order.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
4.0 and later |
Not supported |
Notes:
-
The "tabbing order" is the order in which page elements are selected when the user presses the Tab key.
- TYPE
= "Text"
The type of the INPUT tag.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
4.0 and later |
3.0 and later |
1.0 and later |
Notes:
- VALUE
= "Text"
The initial value assigned to the control.
-
Support:
-
HTML Standard | Internet Explorer | Netscape Navigator |
2.0 and later |
1.0 and later |
1.0 and later |
Notes:
-
This is the value that tells you which radio button was activated when the user submitted the form.
- In a group of related radio buttons, each control should have a unique value.
Example:
<FORM ACTION="http://www.mcfedries.com/cgi-win/formtest.exe" METHOD=POST>
Which of the following best describes your political leanings:
<UL>
<INPUT TYPE=RADIO NAME="Politics" VALUE="Politics1" CHECKED>So far left, I'm right<BR>
<INPUT TYPE=RADIO NAME="Politics" VALUE="Politics2">Yellow Dog Democrat<BR>
<INPUT TYPE=RADIO NAME="Politics" VALUE="Politics3">Right down the middle<BR>
<INPUT TYPE=RADIO NAME="Politics" VALUE="Politics4">Country Club Republican<BR>
<INPUT TYPE=RADIO NAME="Politics" VALUE="Politics5">So far right, I'm left<BR>
</UL>
<P>
<INPUT TYPE=SUBMIT VALUE="Submit">
</FORM>
How It Looks:
-
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