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AvailabilityJavaScript 1.1 Synopsis<body onblur="handler" ... > <frameset onblur="handler" ... > window.onblur DescriptionThe onblur property of a Window specifies an event handler function that is invoked when the window loses keyboard focus. The initial value of this property is a function that contains the semicolon-separated JavaScript statements specified by the onblur attribute of the <body> or <frameset> tags. In the Netscape 4 event model, the onblur handler function is passed an Event object as an argument. In the IE event model, no argument is passed, but the applicable Event object is available as the event property of the Window object that contains the element. UsageIf your web page has animation, you can use the onblur( ) event handler to stop the animation when the window doesn't have the input focus. In theory, if the window doesn't have the focus, the user probably can't see it or isn't paying attention to it. See AlsoWindow.blur( ), Window.focus( ), Window.onfocus; Chapter 19; Event, EventListener, and EventTarget in the DOM reference section |
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