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JS & DOM Reference

Overview

JavaScript Objects

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Browser Objects

Window Navigator Screen History Location

Core DOM Objects

DOM Node DOM NodeList DOM NamedNodeMap DOM Document DOM Element DOM Attr

HTML DOM Objects

DOM Document DOM Events DOM Elements
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Window screenLeft and screenTop Properties

Window Object

Definition and Usage

The screenLeft and screenTop properties returns the x and y coordinates of the window relative to the screen.

Syntax

window.screenLeft
window.screenTop

Browser Support

The screenLeft and screenTop properties are supported in all major browsers, except Firefox.

Note: For Firefox, use "window.screenX" and "window.screenY".

Example

Return the x and y coordinates of the new window relative to the screen:

<html>
<head>
<script>
function openWin()
{
myWindow=window.open('','');
myWindow.document.write("<p>This is 'myWindow'");
myWindow.document.write("<br>ScreenLeft: " + myWindow.screenLeft);
myWindow.document.write("<br>ScreenTop: " + myWindow.screenTop + "</p>");
}
</script>
</head>
<body>

<input type="button" value="Open 'myWindow'" onclick="openWin()">

</body>
</html>

Try it yourself »

Window Object