This page provides one-click access to Netscape's and Microsoft's official JavaScript and Object Model documentation.
| Element | Type | Description | MS Docs | Ns Docs |
|---|---|---|---|---|
| ! | JS Operator | Logical NOT | Microsoft | Netscape |
| $1...$9 | JS Property | Pattern matching properties | Microsoft | n/a |
| & | JS Operator | Bitwise AND | Microsoft | Netscape |
| && | JS Operator | Logical AND | Microsoft | Netscape |
| >> | JS Operator | Bitwise right shift | Microsoft | Netscape |
| >>> | JS Operator | Unsigned bitwise right shift | Microsoft | Netscape |
| << | JS Operator | Bitwise left shift | Microsoft | Netscape |
| <= | JS Operator | Less than or equal to | Microsoft | Netscape |
| ++ | JS Operator | Increment by 1 | Microsoft | Netscape |
| , | JS Operator | Comma operator | Microsoft | Netscape |
| - | JS Operator | Subtraction, unary negation | Microsoft | Netscape |
| -- | JS Operator | Decrease by 1 | Microsoft | Netscape |
| / | JS Operator | Divide | Microsoft | Netscape |
| /*..*/ | JS Statement | Multiline comment | Microsoft | Netscape |
| // | JS Statement | Single-line comment | Microsoft | Netscape |
| < | JS Operator | Less than | Microsoft | Netscape |
| = | JS Operator | Assignment operator | Microsoft | Netscape |
| = = | JS Operator | Test for equality | Microsoft | Netscape |
| ? | JS Operator | Conditional trinary operator | Microsoft | Netscape |
| @cc_on | JS Statement | Conditional compilation | Microsoft | n/a |
| @if | JS Statement | Conditional IF | Microsoft | n/a |
| @set | JS Statement | Conditional compilation | Microsoft | n/a |
| ^ | JS Operator | Bitwise XOR | Microsoft | Netscape |
| | | JS Operator | Bitwise OR | Microsoft | Netscape |
| ~ | JS Operator | Bitwise NOT | Microsoft | Netscape |
| A | HTML Object | Hyperlink or target object | Microsoft | Netscape |
| abs() | JS Method | Absolute value | Microsoft | Netscape |
| accessKey | OM Property | Get/set accelerator key | Microsoft | n/a |
| acos() | JS Method | Arccosine | Microsoft | Netscape |
| acronym | HTML Object | Acronym abbreviation object | Microsoft | n/a |
| action | OM Property | Get/set form ACTION= attribute | Microsoft | Netscape |
| activeElement | OM Property | Identifies element with the focus | Microsoft | n/a |
| ActiveXObject | JS Object | Automation object reference | Microsoft | n/a |
| add() | OM Method | Add element to collection | Microsoft | n/a |
| address | HTML Object | Address text object | Microsoft | n/a |
| alert() | OM Method | Display Alert message box | Microsoft | Netscape |
| align | OM Property | Get/set element alignment | Microsoft | n/a |
| aLink | OM Property | Get/set active link color | Microsoft | n/a |
| alinkColor | OM Property | Get/set active hyperlink color | Microsoft | Netscape |
| all | OM Collection | Collection of all objects | Microsoft | n/a |
| alt | OM Property | Get/set image alternate text | Microsoft | n/a |
| altKey | OM Property | Get/set status of Alt key | Microsoft | n/a |
| anchor() | JS Method | Create named target | Microsoft | Netscape |
| anchors | OM Collection | All target objects | Microsoft | Netscape |
| appCodeName | OM Property | Get browser code name | Microsoft | Netscape |
| applet | HTML Object | Java applet object | Microsoft | Netscape |
| applets | OM Collection | All Java applet objects | Microsoft | Netscape |
| appName | OM Property | Detect client browser name | Microsoft | Netscape |
| appVersion | OM Property | Detect client browser version | Microsoft | Netscape |
| area | HTML Object | Hot spot object | Microsoft | Netscape |
| areas | OM Collection | Area objects in image map | Microsoft | Netscape |
| arguments | JS Property | Array containing passed arguments | Microsoft | Netscape |
| arity | OM Property | How many arguments function expects | n/a | Netscape |
| Array | JS Object | Create array | Microsoft | Netscape |
| asin() | JS Method | Arcsine | Microsoft | Netscape |
| atan() | JS Method | Arctangent | Microsoft | Netscape |
| atan2() | JS Method | Angle in radians | Microsoft | Netscape |
| atEnd() | JS Method | End of collection | Microsoft | n/a |
| B | HTML Object | Boldfaced text object | Microsoft | n/a |
| back() | OM Method | Go back in history list | Microsoft | Netscape |
| background | OM Property | Get/set background picture | Microsoft | n/a |
| backgroundAttachment | OM Property | Get/set scrolling status of background | Microsoft | n/a |
| backgroundColor | OM Property | Get/set document background color | Microsoft | n/a |
| backgroundImage | OM Property | Get/set background image | Microsoft | n/a |
| backgroundRepeat | OM Property | Get/set background tiling | Microsoft | n/a |
| base | HTML Object | Default URL/target object | Microsoft | n/a |
| basefont | HTML Object | Initial font definition object | Microsoft | n/a |
| behavior | OM Property | Determine how marquee text scrolls | Microsoft | n/a |
| bgColor | OM Property | Get/set background color | Microsoft | Netscape |
| bgProperties | OM Property | Get/set watermark capability | Microsoft | n/a |
| bgsound | HTML Object | Background sound object | Microsoft | n/a |
| big | HTML Object | Relatively large text object | Microsoft | n/a |
| big() | JS Method | Insert <BIG> tags | Microsoft | Netscape |
| blink() | JS Method | Insert <BLINK> tags | Microsoft | Netscape |
| blockquote | HTML Object | Indented text object | Microsoft | n/a |
| blur() | OM Method | Remove cursor from field | Microsoft | Netscape |
| body | HTML Object | Document body object | Microsoft | n/a |
| bold() | JS Method | Insert <B> tags | Microsoft | Netscape |
| Boolean | JS Object | True/False value | Microsoft | Netscape |
| border | OM Property | Border thickness | Microsoft | Netscape |
| borderBottomColor | OM Property | Bottom border color | Microsoft | n/a |
| borderBottomStyle | OM Property | Bottom border style | Microsoft | n/a |
| borderBottomWidth | OM Property | Bottom border width | Microsoft | n/a |
| borderColor | OM Property | Bottom border color | Microsoft | n/a |
| borderColorDark | OM Property | 3D border dark color | Microsoft | n/a |
| borderColorLight | OM Property | 3D border light color | Microsoft | n/a |
| borderLeftColor | OM Property | Left border color | Microsoft | n/a |
| borderLeftStyle | OM Property | Left border style | Microsoft | n/a |
| borderLeftWidth | OM Property | Left border width | Microsoft | n/a |
| borderRightColor | OM Property | Right border color | Microsoft | n/a |
| borderRightStyle | OM Property | Right border style | Microsoft | n/a |
| borderRightWidth | OM Property | Right border width | Microsoft | n/a |
| borderTopColor | OM Property | Top border color | Microsoft | n/a |
| borderTopStyle | OM Property | Top border style | Microsoft | n/a |
| borderTopWidth | OM Property | Top border width | Microsoft | n/a |
| br | HTML Object | Line break object | Microsoft | n/a |
| break | JS Statement | Terminate loop | Microsoft | Netscape |
| bufferDepth | OM Property | Get/set off-screen bitmap buffer | Microsoft | n/a |
| button | HTML Object | Form button object | Microsoft | Netscape |
| button | OM Property | Detect mouse button pressed | Microsoft | n/a |
| button (MSIE) | HTML Object | MSIE4 button object | Microsoft | n/a |
| caller | JS Property | Name of calling function | Microsoft | Netscape |
| cancelBubble | OM Property | Get/set event's buoyancy | Microsoft | n/a |
| caption | HTML Object | Table caption object | Microsoft | n/a |
| captureEvents() | OM Method | Set capture events | n/a | Netscape |
| ceil() | JS Method | Round to smallest integer | Microsoft | Netscape |
| cellPadding | OM Property | Space between cell borders/content | Microsoft | n/a |
| cells | OM Collection | All cells in a table row | Microsoft | n/a |
| cellSpacing | OM Property | Space between cells in a table | Microsoft | n/a |
| center | HTML Object | Centered object | Microsoft | n/a |
| charAt() | JS Method | Position of character in string | Microsoft | Netscape |
| charCodeAt() | JS Method | Unicode encoding of character | Microsoft | Netscape |
| charset | OM Property | Get/set document character set | Microsoft | n/a |
| checkbox | HTML Object | Checkbox field object | Microsoft | Netscape |
| checked | OM Property | Clear/select checkbox or radio button | Microsoft | Netscape |
| children | OM Collection | All children of an element | Microsoft | n/a |
| cite | HTML Object | Citation text object | Microsoft | n/a |
| classID | OM Property | Class ID of ActiveX control | Microsoft | n/a |
| className | OM Property | Get/set class of tag | Microsoft | n/a |
| clear | OM Property | Get/set BR tag CLEAR= attribute | Microsoft | n/a |
| clearInterval() | JS Method | Clear a setInterval() timer | n/a | Netscape |
| clearTimeout() | OM Method | Clear a setTimeout() timer | Microsoft | Netscape |
| click() | OM Method | Simulates a mouse click | Microsoft | Netscape |
| close() | OM Method | Close output stream to document | Microsoft | Netscape |
| closed | OM Property | Closed status of a window | Microsoft | Netscape |
| code | OM Property | Filename of compiled Java class | Microsoft | n/a |
| code | HTML Object | Monospaced text object | Microsoft | n/a |
| codeBase | OM Property | URL of an object's implementation | Microsoft | n/a |
| codeType | OM Property | Value of object's CODETYPE attribute | Microsoft | n/a |
| col | HTML Object | Table column object | Microsoft | n/a |
| colgroup | HTML Object | Group of table columns object | Microsoft | n/a |
| color | OM Property | Get/set element color property | Microsoft | n/a |
| colorDepth | OM Property | Client color depth | Microsoft | n/a |
| cols | OM Property | Columns in table, frameset, textbox | Microsoft | n/a |
| colSpan | OM Property | Columns a table cell should span | Microsoft | n/a |
| comment | HTML Object | Comment object | Microsoft | n/a |
| compact | OM Property | Get/set compact list style | Microsoft | n/a |
| Comparison Operators | JS Operator | Comparison operators | Microsoft | Netscape |
| compile() | JS Method | Compile an expression | Microsoft | n/a |
| complete | OM Property | Fires after element has loaded | Microsoft | Netscape |
| Compound Operators | JS Operator | +=. *=, and others | Microsoft | Netscape |
| concat() (array) | JS Method | Join two arrays | Microsoft | Netscape |
| concat() (string) | JS Method | Join two strings | Microsoft | Netscape |
| confirm() | OM Method | Display Confirmation message | Microsoft | Netscape |
| constructor | JS Property | Create an object | Microsoft | Netscape |
| contains() | OM Method | Does element contain.? | Microsoft | n/a |
| continue | JS Statement | Start loop over | Microsoft | Netscape |
| cookie | OM Property | Get/set cookie | Microsoft | Netscape |
| cookieEnabled | OM Property | Get client "Accept Cookies" status | Microsoft | n/a |
| coords | OM Property | Get/set hot spot settings | Microsoft | n/a |
| cos() | JS Method | Cosine | Microsoft | Netscape |
| createElement() | OM Method | Create instance of element | Microsoft | n/a |
| createRange() | OM Method | Copy of currently selected range | Microsoft | n/a |
| createTextRange() | OM Method | Return a range over a stream | Microsoft | n/a |
| cssText | OM Property | Get/set persisted representation of rule | Microsoft | n/a |
| ctrlKey | OM Property | Get control key status | Microsoft | n/a |
| data | OM Property | Get URL to an object's data | Microsoft | n/a |
| Data Type Conversion | JS Data Type | Jscript Data Types | Microsoft | n/a |
| dataFld | OM Property | Bind data field to element | Microsoft | n/a |
| dataFormatAs | OM Property | Render as Text or HTML | Microsoft | n/a |
| dataSrc | OM Property | Source of data for databinding | Microsoft | n/a |
| Date | JS Object | Client PC system date | Microsoft | Netscape |
| DD | HTML Object | Definition object | Microsoft | n/a |
| defaultChecked | OM Property | Get/set checkbox default status | Microsoft | Netscape |
| defaultSelected | OM Property | Get/set slect box default selection | Microsoft | Netscape |
| defaultStatus | OM Property | Get/set default status bar message | Microsoft | Netscape |
| defaultValue | OM Property | Get/set default value for form field | Microsoft | n/a |
| del | HTML Object | Deleted text object | Microsoft | n/a |
| delete | JS Operator | Remove array element or object property | Microsoft | Netscape |
| dfn | HTML Object | Definition term object | Microsoft | n/a |
| dialogAruments | OM Property | Arguments passed to HTML dialog | Microsoft | n/a |
| Dictionary | JS Object | Data dictionary | Microsoft | n/a |
| dimensions() | JS Method | Number of dimensions in VBArray | Microsoft | n/a |
| dir | HTML Object | Directory list object | Microsoft | n/a |
| direction | OM Property | Get/set marquee scrollidirection | Microsoft | n/a |
| disabled | OM Property | Get/set DISABLED attribute | Microsoft | n/a |
| disableExternalCapture() | OM Method | Disable external event capture | n/a | Netscape |
| display | OM Property | Get/set CSS display attribute | Microsoft | n/a |
| div | HTML Object | Division of content object | Microsoft | n/a |
| dl | HTML Object | Definition list object | Microsoft | n/a |
| do...while | JS Statement | Conditional loop | Microsoft | Netscape |
| document | HTML Object | Entire HTML document object | Microsoft | Netscape |
| domain | OM Property | Get/set document's security domain | Microsoft | Netscape |
| dt | HTML Object | Definition term object | Microsoft | n/a |
| duplicate() | OM Method | Returns duplicate of range | Microsoft | n/a |
| dynsrc | OM Property | Get/set video clip | Microsoft | n/a |
| E | JS Property | Base of natural logarithms | Microsoft | Netscape |
| elementFromPoint() | OM Method | Element at specified xy coordinates | Microsoft | n/a |
| elements | OM Collection | All form elements | Microsoft | Netscape |
| em | HTML Object | Emphasized text object | Microsoft | n/a |
| embed | HTML Object | Embedded object | Microsoft | n/a |
| embeds | OM Collection | All embedded elements | Microsoft | Netscape |
| empty() | OM Method | Deselect the current selection | Microsoft | n/a |
| enabledPlugin | OM Property | Get name of mime-type's plug-in | n/a | Netscape |
| enableExternalCapture() | OM Method | Enable external event capturing | n/a | Netscape |
| Enumerator | JS Object | Enumerate items in collection | Microsoft | n/a |
| escape() | JS Method | Unicode characters | Microsoft | Netscape |
| eval() | JS Method | Execute a string | Microsoft | Netscape |
| event | HTML Object | Event object | Microsoft | Netscape |
| event | OM Property | Get event bound to script | Microsoft | n/a |
| exec() | JS Method | Execute search for a match | Microsoft | n/a |
| execCommand() | OM Method | Execute command over range or selection | Microsoft | n/a |
| execScript() | OM Method | Execute a script | Microsoft | n/a |
| exp() | JS Method | Compute to power of e | Microsoft | Netscape |
| expand() | OM Method | Expand a range | Microsoft | n/a |
| export | JS Statement | Allow access to signed code | n/a | Netscape |
| external | HTML Object | External object model | Microsoft | n/a |
| face | OM Property | Get/set font typeface | Microsoft | n/a |
| fgColor | OM Property | Get/set text color | Microsoft | Netscape |
| fieldset | HTML Object | Multiple-field object | Microsoft | n/a |
| fileCreatedDate | OM Property | Date file was created | Microsoft | n/a |
| fileModifiedDate | OM Property | Date file was last modified | Microsoft | n/a |
| fileSize | OM Property | Size of a file, in bytes | Microsoft | n/a |
| FileSystemObject | JS Object | Access os file system | Microsoft | n/a |
| fileUpdatedDate | OM Property | Date file was last updated | Microsoft | n/a |
| fileUpload | HTML Object | File upload control on a form | n/a | Netscape |
| filter | OM Property | Filter applied to an element | Microsoft | n/a |
| filters | OM Collection | All filters applied to element | Microsoft | n/a |
| find() | OM Method | Search document | n/a | Netscape |
| fixed() | JS Method | Place <TT> tags around text | Microsoft | Netscape |
| floor() | JS Method | Smallest integer | Microsoft | Netscape |
| focus() | OM Method | Move cursor to form field | Microsoft | Netscape |
| font | HTML Object | Font definition object | Microsoft | n/a |
| fontcolor() | JS Method | Insert <FONT COLOR..> tags | Microsoft | Netscape |
| fontFamily | OM Property | Get/set style's font family | Microsoft | n/a |
| fontSize | OM Property | Get/set style's font size | Microsoft | n/a |
| fontsize() | JS Method | Insert <FONT SIZE..> tags | Microsoft | Netscape |
| fontStyle | OM Property | Get/set style's font-style | Microsoft | n/a |
| fontVariant | OM Property | Get/set style's font-variant | Microsoft | n/a |
| fontWeight | OM Property | Get/set style's font-weight | Microsoft | n/a |
| for | JS Statement | Looping statement | Microsoft | Netscape |
| for...in | JS Statement | Loop through array or properties | Microsoft | Netscape |
| form | HTML Object | Form object | Microsoft | Netscape |
| form | OM Property | Name of element's containing form | Microsoft | Netscape |
| forms | OM Collection | All forms in document | Microsoft | Netscape |
| forward() | OM Method | Move forward one URL in history list | Microsoft | Netscape |
| frame | OM Property | Appearance of table's border frame | Microsoft | n/a |
| frame | HTML Object | Frame object | Microsoft | Netscape |
| frameBorder | OM Property | Frame border visible? | Microsoft | n/a |
| frames | OM Collection | All window/frame objects | Microsoft | n/a |
| frameset | HTML Object | Frameset object | Microsoft | n/a |
| frameSpacing | OM Property | Get/set space between frames | Microsoft | n/a |
| fromCharCode() | JS Method | Convert from Unicode | Microsoft | Netscape |
| fromElement | OM Property | Get element focus just left | Microsoft | n/a |
| function | JS Statement | Define a custom function | Microsoft | Netscape |
| Function | JS Object | Create function object | Microsoft | Netscape |
| getDate() | JS Method | Day of month | Microsoft | Netscape |
| getDay() | JS Method | Day of week | Microsoft | Netscape |
| getFullYear() | JS Method | Four-digit year | Microsoft | n/a |
| getHours() | JS Method | Current hour | Microsoft | Netscape |
| getItem() | JS Method | Retrieve item from VBArray | Microsoft | n/a |
| getMember() | OM Method | Return value of a property | n/a | Netscape |
| getMilliseconds() | JS Method | Current millisecond | Microsoft | n/a |
| getMinutes() | JS Method | Current minute | Microsoft | Netscape |
| getMonth() | JS Method | Current month | Microsoft | Netscape |
| GetObject | JS Function | Automation object reference | Microsoft | n/a |
| getSeconds() | JS Method | Current second | Microsoft | Netscape |
| getSelection() | JS Method | Selected text | n/a | Netscape |
| getTime() | JS Method | Convert date to milliseconds | Microsoft | Netscape |
| getTimezoneOffset() | JS Method | Offset from Universal Coordinated Time | Microsoft | Netscape |
| getUTCDate() | JS Method | Universal Coord. Date | Microsoft | n/a |
| getUTCDay() | JS Method | Universal Coord day of week | Microsoft | n/a |
| getUTCFullYear() | JS Method | Universal Coord year (4-digit) | Microsoft | n/a |
| getUTCHours() | JS Method | Universal Coord hour | Microsoft | n/a |
| getUTCMilliseconds() | JS Method | Universal Coord millisecond | Microsoft | n/a |
| getUTCMinutes() | JS Method | Universal Coord minute | Microsoft | n/a |
| getUTCMonth() | JS Method | Universal Coord month | Microsoft | n/a |
| getUTCSeconds() | JS Method | Universal Coord second | Microsoft | n/a |
| getVarDate() | JS Method | Date in VT_DATE format | Microsoft | n/a |
| getYear() | JS Method | Current year (two-digit) | Microsoft | Netscape |
| Global | JS Object | Collect global methods | Microsoft | n/a |
| go() | OM Method | Navigate the history list | Microsoft | Netscape |
| h1..h6 | HTML Object | Heading objects | Microsoft | n/a |
| handleEvent() | OM Method | Invoke handler for event | n/a | Netscape |
| hash | OM Property | Get/set hash portion of URL | Microsoft | Netscape |
| head | HTML Object | Document header object | Microsoft | n/a |
| height | OM Property | Get/set height of element | Microsoft | Netscape |
| hidden | HTML Object | Hidden field on form | Microsoft | Netscape |
| history | HTML Object | History list object | Microsoft | Netscape |
| home() | OM Method | Jump to client's preferred home page | n/a | Netscape |
| host | OM Property | Get/set URL host and port | Microsoft | Netscape |
| hostname | OM Property | Get/set hostname portion of a URL | Microsoft | Netscape |
| hr | HTML Object | Horizontal rule object | Microsoft | n/a |
| href | OM Property | Get/set page's URL | Microsoft | Netscape |
| hspace | OM Property | Get/set element's horizontal margin | Microsoft | Netscape |
| html | HTML Object | Entire document object | Microsoft | n/a |
| htmlText | OM Property | Get the HTML source as HTML fragment | Microsoft | n/a |
| I | HTML Object | Italicized text object | Microsoft | n/a |
| id | OM Property | Get element's SGML identifier | Microsoft | n/a |
| if...else | JS Statement | Make a decision | Microsoft | Netscape |
| iframe | HTML Object | Inline floating frame object | Microsoft | n/a |
| ignoreCase | JS Property | Reads ignore case setting | Microsoft | n/a |
| image | HTML Object | INPUT TYPE=IMAGE image | Microsoft | Netscape |
| images | OM Collection | All images | Microsoft | Netscape |
| IMG | HTML Object | Graphic image object | Microsoft | Netscape |
| import | JS Statement | Import functions from signed script | n/a | Netscape |
| imports | OM Collection | All imported style sheets | Microsoft | n/a |
| indeterminate | OM Property | Checkbox gets gray "undetermined" look | Microsoft | n/a |
| index | OM Property | Get ordinal position of element in collection | Microsoft | n/a |
| index | JS Property | Starting position of string | Microsoft | n/a |
| indexOf() | JS Method | Position of substring in string | Microsoft | Netscape |
| Infinity | JS Property | Initial value of POSITIVE_INFINITY | Microsoft | n/a |
| innerHeight | OM Property | Height of the document window | n/a | Netscape |
| innerHTML | OM Property | Get/set HTML between a pair of tags | Microsoft | n/a |
| innerWidth | OM Property | Width of the document window | n/a | Netscape |
| INPUT | HTML Object | Form field object | Microsoft | n/a |
| input | JS Property | String that search was performed on | Microsoft | n/a |
| inRange() | OM Method | Is range within current range? | Microsoft | n/a |
| INS | HTML Object | Inserted text object | Microsoft | n/a |
| isEqual() | OM Method | Is range identical to current range? | Microsoft | n/a |
| isFinite() | JS Method | Test for finite/infinite | Microsoft | n/a |
| isMap | OM Property | Get/set IsMap attribute of image maps | Microsoft | n/a |
| isNaN() | JS Method | Is non-number? | Microsoft | Netscape |
| italics() | JS Method | Insert <I> tags | Microsoft | Netscape |
| item() | JS Method | Single item in a collection | Microsoft | n/a |
| item() | OM Method | Get element from array | Microsoft | n/a |
| javaEnabled | OM Property | Determines if client browser does Java | Microsoft | Netscape |
| join() | JS Method | Convert array elements to string | Microsoft | Netscape |
| kbd | HTML Object | Keyboard-format text object | Microsoft | n/a |
| keyCode | OM Property | Get/set ASCII code of keypress | Microsoft | n/a |
| label | HTML Object | Label object | Microsoft | n/a |
| labeled | JS Statement | Statement identifier | Microsoft | Netscape |
| language | OM Property | Get script tag's LANGUAGE attribute | Microsoft | Netscape |
| lastIndex | JS Property | Position of last successful match | Microsoft | n/a |
| lastIndexOf() | JS Method | Last occurrence of substring in a string | Microsoft | Netscape |
| lastModified | OM Property | Date/time document last modified | Microsoft | Netscape |
| layer | OM Collection | All layers | n/a | Netscape |
| lbound() | JS Method | Lowest index value in an array | Microsoft | n/a |
| left | OM Property | Get/set element's left position | Microsoft | n/a |
| leftMargin | OM Property | Get/set document left margin | Microsoft | n/a |
| length | OM Property | Number of items in collection or array | Microsoft | Netscape |
| length (array) | JS Property | Number of items in an array | Microsoft | Netscape |
| length (Function) | JS Property | How many function arguments? | Microsoft | n/a |
| length (string) | JS Property | Length of a string | Microsoft | Netscape |
| letterSpacing | OM Property | Get/set style letter spacing | Microsoft | n/a |
| li | HTML Object | List item object | Microsoft | n/a |
| lineHeight | OM Property | Get/set style lineHeight attribute | Microsoft | n/a |
| link | OM Property | Get/set color of unvisited hyperlinks | Microsoft | n/a |
| link | HTML Object | Link object | Microsoft | Netscape |
| link() | JS Method | Insert <A HREF> tags | Microsoft | Netscape |
| linkColor | OM Property | Get/set unvisited hyperlink color | Microsoft | Netscape |
| links | OM Collection | All hyperlinks | Microsoft | Netscape |
| listing | HTML Object | Listing object | Microsoft | n/a |
| LN10 | JS Property | Natural logarithm of 10 | Microsoft | Netscape |
| LN2 | JS Property | Natural logarithm of 2 | Microsoft | Netscape |
| location | HTML Object | Current URL object | Microsoft | Netscape |
| location | OM Property | Location of current page | Microsoft | Netscape |
| locationBar | OM Property | Show/hides Navigator Address bar | n/a | Netscape |
| log() | JS Method | Natural logarithm | Microsoft | Netscape |
| LOG10E | JS Property | Base-10 logarithm of e | Microsoft | Netscape |
| LOG2E | JS Property | Base-2 logarithm of e | Microsoft | Netscape |
| loop | OM Property | Get/set multimedia play repetition | Microsoft | n/a |
| lowsrc | OM Property | Get/set image low-res rsource | Microsoft | Netscape |
| map | OM Property | Get/set map associated with image | Microsoft | n/a |
| map | HTML Object | Image map object | Microsoft | n/a |
| margin | OM Property | Get style margin attribute | Microsoft | n/a |
| marginBottom | OM Property | Get style marginBottom attribute | Microsoft | n/a |
| marginHeight | OM Property | Get/set frame's top and bottom margins | Microsoft | n/a |
| marginLeft | OM Property | Get style marginLeft setting | Microsoft | n/a |
| marginRight | OM Property | Get style's marginRight setting | Microsoft | n/a |
| marginTop | OM Property | Get style marginTop setting | Microsoft | n/a |
| marginWidth | OM Property | Get/set frame margins | Microsoft | n/a |
| marquee | HTML Object | Scrolling text object | Microsoft | n/a |
| match() | JS Method | Perform search on a string | Microsoft | Netscape |
| Math | JS Object | Provides math functionality | Microsoft | Netscape |
| max() | JS Method | Largest of two values | Microsoft | Netscape |
| MAX_VALUE | JS Property | Largest number in JavaScript | Microsoft | Netscape |
| maxLength | OM Property | Get/set max characters in textbox | Microsoft | n/a |
| menu | HTML Object | Menu list object | Microsoft | n/a |
| menubar | OM Property | Show/hide menu bar | n/a | Netscape |
| meta | HTML Object | Header tag object | Microsoft | n/a |
| method | OM Property | Get/set how form data should be sent | Microsoft | Netscape |
| Methods | OM Property | Get/set METHODS attribute | Microsoft | n/a |
| mimeType | OM Property | Get object/document mime type | n/a | Netscape |
| min() | JS Method | Smallest of two values | Microsoft | Netscape |
| MIN_VALUE | JS Property | Smallest JavaScript number, about 2.22E-308 | Microsoft | Netscape |
| move() | OM Method | Move the range over text | Microsoft | n/a |
| moveBy() | OM Method | Move the window by specified amount | n/a | Netscape |
| moveEnd() | OM Method | Grow or shrink range from end | Microsoft | n/a |
| moveFirst() | JS Method | Go to first item in a collection | Microsoft | n/a |
| moveNext() | JS Method | Next item in a collection | Microsoft | n/a |
| moveStart() | OM Method | Grow or shrink range from start | Microsoft | n/a |
| moveTo() | OM Method | Move window to specified coordinates | n/a | Netscape |
| multiple | OM Property | Get/set <SELECT> tag MULTIPLE attribute | Microsoft | n/a |
| name | OM Property | Window, frame, control, bookmark or applet name | Microsoft | Netscape |
| NaN | JS Property | Not a Number | Microsoft | n/a |
| NaN | JS Property | Not a Number | Microsoft | Netscape |
| navigate() | OM Method | Navigate to a new URL | Microsoft | n/a |
| navigator | HTML Object | Client's browser | Microsoft | Netscape |
| NEGATIVE_INFINITY | JS Property | Value smaller than smallest JavaScript number | Microsoft | Netscape |
| new | JS Operator | Create new object | Microsoft | Netscape |
| nextid | HTML Object | Editing software object | Microsoft | n/a |
| noHref | OM Property | Neutralize a hot spot | Microsoft | n/a |
| noResize | OM Property | Get/set visitor's ability to size frames | Microsoft | n/a |
| noShade | OM Property | Get/set Shade attribute of horizontal rule | Microsoft | n/a |
| noWrap | OM Property | Get/set table cell word-wrap | Microsoft | n/a |
| Number | JS Object | Number data type | Microsoft | Netscape |
| Object | JS Object | Convert data type to an object | Microsoft | Netscape |
| object | HTML Object | Embedded object | Microsoft | n/a |
| ol | HTML Object | Ordered list object | Microsoft | n/a |
| onabort | OM Event | Fires when image download aborts | Microsoft | Netscape |
| onafterupdate | OM Event | Fires after data update | Microsoft | n/a |
| onbeforeunload | OM Event | Fires just before page closes | Microsoft | n/a |
| onbeforeupdate | OM Event | Fires before data is changed | Microsoft | n/a |
| onblur | OM Event | Fires when cursor leaves control | Microsoft | Netscape |
| onbounce | OM Event | Fires when text in marquee bounces | Microsoft | n/a |
| onchange | OM Event | Fires when user changes and leaves a field | Microsoft | Netscape |
| onclick | OM Event | Fires when element is clicked | Microsoft | Netscape |
| ondataavailable | OM Event | Fires as data arrives from a source | Microsoft | n/a |
| ondatasetchanged | OM Event | Fires when recordset changes | Microsoft | n/a |
| ondatasetcomplete | OM Event | Fires when data source is available | Microsoft | n/a |
| ondblclick | OM Event | Fires when object double-clicked | Microsoft | Netscape |
| onerror | OM Event | Fires in response to an error | Microsoft | Netscape |
| onfocus | OM Event | Fires when control receives focus | Microsoft | Netscape |
| onkeydown | OM Event | Fires when user first presses a key | Microsoft | Netscape |
| onkeypress | OM Event | Fires when user presses a key | Microsoft | Netscape |
| onkeyup | OM Event | Fires when user releases a key | Microsoft | Netscape |
| onload | OM Event | Fires when a web page is loaded | Microsoft | Netscape |
| onmousedown | OM Event | Fires when user presses a mouse button | Microsoft | Netscape |
| onmousemove | OM Event | Fires when mouse pointer moves across item | Microsoft | Netscape |
| onmouseout | OM Event | Fires when the mouse pointer leaves object | Microsoft | Netscape |
| onmouseover | OM Event | Fires when mouse pointer is over element | Microsoft | Netscape |
| onmouseup | OM Event | Fires when user releases mouse button | Microsoft | Netscape |
| onMove | OM Event | Fires when a window/frame is moved | n/a | Netscape |
| onreadystatechange | OM Event | Fires when object's ready status changes | Microsoft | n/a |
| onreset | OM Event | Fires when the user resets a form | Microsoft | n/a |
| onresize | OM Event | Fires when user resizes a window/frame | n/a | Netscape |
| onrowenter | OM Event | Fires when databound row changes | Microsoft | n/a |
| onrowexit | OM Event | Fires on exiting databound row | Microsoft | n/a |
| onscroll | OM Event | Fires when scroll bar is moved | Microsoft | n/a |
| onselect | OM Event | Fires when dragging cursor though text | Microsoft | Netscape |
| onstart | OM Event | Fires at the start of every marquee loop | Microsoft | n/a |
| onsubmit | OM Event | Fires when user submits a form | Microsoft | Netscape |
| onunload | OM Event | Fires when reader leaves page | Microsoft | Netscape |
| open() | OM Method | Open new window or text stream | Microsoft | Netscape |
| opener | OM Property | Name of the calling browser window | Microsoft | Netscape |
| Operator Precedence | JS Operator | Order of precedence | Microsoft | n/a |
| option | HTML Object | Drop-down list item object | Microsoft | n/a |
| options | OM Collection | All options in SELECT tag | Microsoft | Netscape |
| outerheight | OM Property | Window height in pixels | n/a | Netscape |
| outerHTML | OM Property | Get/set element and outer HTML tags | Microsoft | n/a |
| outerText | OM Property | Get/set text of the current element | Microsoft | n/a |
| outerWidth | OM Property | Window width in pixels | n/a | Netscape |
| overflow | OM Property | Get/set overflow attribute of style | Microsoft | n/a |
| p | HTML Object | Paragraph object | Microsoft | n/a |
| pageXOffset | OM Property | Page's x-position in pixels | n/a | Netscape |
| pageYOffset | OM Property | Page's y-position in pixels | n/a | Netscape |
| param | HTML Object | Parameter for APPLET, EMBED, or OBJECT | Microsoft | n/a |
| parent | OM Property | Name of object one level up | Microsoft | Netscape |
| parentElement | OM Property | Parent to current element | Microsoft | n/a |
| parse() | JS Method | Number of milliseconds since 1/1/70 | Microsoft | Netscape |
| parseFloat() | JS Method | Convert String to Floating-point | Microsoft | Netscape |
| parseInt() | JS Method | Convert String to Integer | Microsoft | Netscape |
| password | HTML Object | Form field for typing a passwords | Microsoft | Netscape |
| pasteHTML | OM Method | Paste text and HTML tags into range | Microsoft | n/a |
| pathname | OM Property | Get/set pathname portion of URL | Microsoft | Netscape |
| personalbar | OM Property | Show/hide Directories bar | n/a | Netscape |
| PI | JS Property | PI, approximately 3.14159 | Microsoft | Netscape |
| plaintext | HTML Object | Fixed-width text object | Microsoft | n/a |
| platform | OM Property | Client machine platform | n/a | Netscape |
| plugins | OM Collection | All embedded plug-ins | Microsoft | Netscape |
| port | OM Property | Get/set port portion of a URL | Microsoft | Netscape |
| posHeight | OM Property | Get/set css top property as float | Microsoft | n/a |
| position | OM Property | Type of positioning used by an element | Microsoft | n/a |
| POSITIVE_INFINITY | JS Property | Value larger than highest JavaScript number | Microsoft | Netscape |
| posLeft | OM Property | Get/set css left property as a float | Microsoft | n/a |
| posTop | OM Property | Get/set css top property as float | Microsoft | n/a |
| posWidth | OM Property | Get/set css width property as a float | Microsoft | n/a |
| pow() | JS Method | Base expression taken to a power |