What is JavaScript?

JavaScript is a compact, object-based scripting language for Web pages. JavaScript code embedded into your HTML pages can enhance them with many interesting elements, from swapping images when you move a cursor over them, to multi-level drop-down menus.

You can create really sophisticated and almost application-like pages with the help of JavaScript. You don't need any special software other than a text editor and a Web browser, and you don't need access to a Web server. You can create and test all your JavaScript code right on your own computer.


A A ActiveXObject AbstractView AddByValueOperator AdditionOperator ANDOperator AssignmentOperator ACRONYM ADDRESS all anchors APPLET applets AREA areas arguments Array Attr attributes

B B BASE BASEFONT BDO BGSOUND big BLOCKQUOTE BODY Boolean BR break BUTTON BitwiseANDOperator BitwiseLeftShiftOperator BitwiseNOTOperator BitwiseOROperator BitwiseRightShiftOperator BitwiseXOROperator BitwiseZeroRightShiftOperator

C Comments ConditionalCompilation continue ControlCodeChar catch CharacterData cite clientInformation code CSSImportRule CSSStyleDeclaration CSSStyleSheet CAPTION cells CENTER checkbox childNodes children clipboardData COL COMMENT cssRule cssRules currentStyle custom CommaOperator ConditionalOperator

D DFN DocumentEvent DocumentRange DocumentStyle DocumentView DOMImplementation DOMActivate DOMAttrModified DOMCharacterDataModified DOMNodeInserted DOMNodeInsertedIntoDocument DOMNodeRemoved DOMNodeRemovedFromDocument DOMSubtreeModified dataTransfer DD DEL Dialog Helper DIR directories DIV DL DocumentFragment DocumentType DOMException DOMFocusIn DT delete DocumentTraversal dowhile Date document DecrementOperator DivisionOperator

E em ElementCSSInlineStyle elements EMBED embeds Enumerator EqualityOperator Error Entity EventListener EventTarget external Element event

F fonts for forin Function FIELDSET fileUpload filters filtersSQAREBRACKET FONT FORM forms FRAME frames FRAMESET

G GreatorThanEqualOperator GreatorThanOperator Global

H H1 HEAD hidden history HR HTML HTMLCollection HTMLDocument HTMLDOMImplementation HTMLElement

I i if ifelse in instanceof ilayer IMG IFRAME images implementation imports INPUT InputTypeButton InputTypeCheckbox InputTypeFile InputTypeHidden InputTypeImage InputTypePassword InputTypeRadio InputTypeReset InputTypeSubmit InputTypeText INS ISINDEX IncrementOperator InequalityOperator

K kbd

L label_Obj label_Object layer LEGEND LI LINK links LinkStyle LISTING location LABEL locationbar LessThanEqualOperator LessThanOperator

M MAP MARQUEE MediaList MENU META mimeType menubar Math ModulusOperator MultiplicationOperator MouseEvent MutationEvent

N navigator nobr NodeFilter NodeIterator NOFRAMES NamedNodeMap Node Number NegationOperator NOTOperator new NodeList Notation

O onabort onactivate onafterprint onafterupdate onbeforeactivate onbeforecopy onbeforecut onbeforedeactivate onbeforeeditfocus onbeforepaste onbeforeprint onbeforeunload onbeforeupdate onblur onbounce oncellchange onchange onclick oncontextmenu oncontrolselect oncopy oncut ondataavailable ondblclick ondeactivate ondrag ondragdrop ondragend ondragenter ondragstart ondrop onerror onerrorupdate onfilterchange onfinish onfocus onfocusin onhelp onkeydown onkeypress onlayoutcomplete onload onlosecapture onmousedown onmouseenter onmousemove onmouseout onmousewheel onmove onpaste onpropertychange onreadystatechange onreset onresize onresizeend onrowenter onscroll onselect onselectionchange onselectstart onstart onstop onsubmit onunload OBJECT Operators
Object_Obj Obj_Button Obj_Document Obj_Event OL optgroup OPTION options Obj_Event OROperator

P P page pages param password PLAINTEXT plugin plugins popup PRE personalbar ProcessingInstruction

Q Q

R radio Range RangeException rb reset rows runtimeStyle RegExp regular expression return rule rules

S s switchcase StrictlyEqualsOperator StrictNotEqualsOperator SubtractionOperator STYLE SELECT selection SPAN String styleElement styleSheet styleSheets SUB submit screen SCRIPT scripts samp scrollbars small statusbar strike strong sup

T TABLE tags tBodies TBODY TD text TEXTAREA TextRange TextRectangle TFOOT TH TITLE TR TreeWalker trycatch TextNode THEAD toolbar tt this throw typeof

U u UL UIEvent userProfile

V var ViewCSS void VBArray

W window with wbr while

X xmp xml



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