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The scroll event in JavaScript

Source: Internet
Author: User
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Window.addeventlistener (' scroll ',function() {    if(Document.compatmode = = " Css1compat ") {        alert (document.documentElement.scrollTop);     Else {        alert (DOCUMENT.BODY.SCROLLTOP);    }},false);

Although the scroll event occurs on a Window object, its event represents a change in the corresponding element in the page. In promiscuous mode, this change can be monitored by the scrollleft and scrolltop of the <body> elements, and in standard mode all browsers except Safari pass through

The event handlers specified in the code above output the vertical scrolling position of the page-different elements are used depending on the rendering mode. Because the previous version of Safari3.1 does not support Document.compatmode, the old version satisfies the second condition.

The scroll event in JavaScript

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