The input element is a multi-purpose form control. The type attribute specifies the type of form control to be created.
<form method="post" action="register.php"><fieldset><legend>Personal information</legend><label for="firstname">First name</label><br /><input type="text" name="firstname" id="firstname" /><br /><label for="lastname">Last name</label><br /><input type="text" name="lastname" id="lastname" /></fieldset><fieldset><legend>Medical history</legend><input name="history" type="checkbox" value="1" id="smallpox" /><label for="smallpox">Smallpox</label><br /><input name="history" type="checkbox" value="2" id="mumps" /><label for="mumps">Mumps</label><br /><input name="history" type="checkbox" value="3" id="dizziness" /><label for="dizziness">Dizziness</label></fieldset><p><input type="submit" name="action" value="Register" /><input type="reset" value="Reset Form" /><input type="hidden" name="session" value="A398DF991" /></p></form>
Basic
alt- (Text) Alternate text for controls of the type
image. checked- When the
type attribute has the value radio or checkbox, this attribute specifies that the radio/checkbox is selected. maxlength- (Number) When the
type attribute has the value text or password, this attribute specifies the maximum number of characters the user may enter. This number should not exceed the value specified in the size attribute. name- (Text) Form control name.
size- (Number) This attribute tells the Web browser the initial width of the control. The width is given in pixels except when the
type attribute has the value text or password. In such cases, its value is the number of characters. typeType of control to create. Possible values are:
text- Creates a single-line text input control.
password- Creates a single-line text input control with masked input (characters appear as asterisks). Note, this control hides what the user is typing from casual observers (someone looking over your shoulder) but provides no more security than any other form control.
checkbox- Creates a checkbox.
radio- Creates a radio button.
submit- Creates a submit button.
image- Creates a graphical submit button. Alternate text should be provided via the
alt attribute. reset- Creates a reset button which restores the value of all controls on the form to their initial state.
button- Creates a push button.
hidden- Creates a hidden control. Hidden controls are useful for passing additional information back and forth between the server and the Web browser.
file- Creates a file select control for uploading files.
value- (Text) Value associated with a control.
Advanced
accept- (ContentTypes) This attribute specifies a comma-separated list of content types that a server processing this form will handle correctly.
accesskey- (Character) Accessibility key character.
disabled- Disables the control for user input. Possible value is
disabled. ismap- If present, this attribute specifies that a server-side image map should be used. Possible value is
ismap. onblur- (Script) A client-side script event that occurs when an element loses focus either by the pointing device or by tabbing navigation.
onchange- (Script) A client-side script event that occurs when a control loses the input focus and its value is modified prior to its next receiving focus.
onfocus- (Script) A client-side script event that occurs when an element receives focus either by the pointing device or by tabbing navigation.
onselect- (Script) A client-side script event that occurs when a user selects some text in a text field.
readonly- If present, this attribute prohibits changes to the value in the control. Possible value is
readonly. src- (URI) When the
type attribute has the value image, this attribute specifies the location of the image to be used to decorate the graphical submit button. tabindex- (Number) Position in tabbing order.
usemap- (IDReference) When the
type attribute has the value image, this attribute associates the image to a client-side image map defined by a map element. The value of this attribute must match the id attribute of the map element.
Common core attributes
class- (NameTokens) This attribute assigns a class name or set of class names to an element. Any number of elements may be assigned the same class name or set of class names. Multiple class names must be separated by white space characters. Class names are typically used to apply CSS formatting rules to an element.
id- (ID) This attribute assigns an ID to an element. This ID must be unique in a document. This ID can be used by client-side scripts (such as JavaScript) to select elements, apply CSS formatting rules, or to build relationships between elements.
title- (Text) This attribute offers advisory information. Some Web browsers will display this information as tooltips. Assistive technologies may make this information available to users as additional information about the element.
Common internationalization attributes
xml:lang- (NameToken) This attribute specifies the base language of an element's attribute values and text content.
dirThis attribute specifies the base direction of text. Possible values:
ltr: Left-to-rightrtl: Right-to-left
Common event attributes
onclick- (Script) A client-side script event that occurs when a pointing device button is clicked over an element.
ondblclick- (Script) A client-side script event that occurs when a pointing device button is double-clicked over an element.
onmousedown- (Script) A client-side script event that occurs when a pointing device button is pressed down over an element.
onmouseup- (Script) A client-side script event that occurs when a pointing device button is released over an element.
onmouseover- (Script) A client-side script event that occurs when a pointing device is moved onto an element.
onmousemove- (Script) A client-side script event that occurs when a pointing device is moved within an element.
onmouseout- (Script) A client-side script event that occurs when a pointing device is moved away from an element.
onkeypress- (Script) A client-side script event that occurs when a key is pressed down over an element then released.
onkeydown- (Script) A client-side script event that occurs when a key is pressed down over an element.
onkeyup- (Script) A client-side script event that occurs when a key is released over an element.
Common style attribute
style- (Text) This attribute specifies formatting style information for the current element. The content of this attribute is called inline CSS. The
style attribute is deprecated (considered outdated), because it fuses together content and formatting.