relatedTarget方法的介绍
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-HTML
<!!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>relatedTarget对象介绍</title>
<script type="text/javascript">
!function (bool) {
//兼容FF一些方法
var html;
if (bool) {
html = window.HTMLElement.prototype;
window.__defineGetter__("event", function () {
//兼容Event对象
var o = arguments.callee;
do {
if (o.arguments[0] instanceof Event) return o.arguments[0];
} while (o = o.caller);
return null;
});
Event.prototype.__defineGetter__('fromElement', function () {
return this.type == 'mouseover' ? this.relatedTarget : this.target;
});
Event.prototype.__defineGetter__("toElement", function () {
/*
这里：
onmouseover的时候relatedTarget为鼠标离开（onmouseout）的对象
onmouseout的时候relatedTarget为鼠标当前（onmouseover）的对象
*/
return this.type == 'mouseout' ? this.relatedTarget : this.target;
});
html.contains = function (o) {
return !!(this.compareDocumentPosition(o) & 16);
};
}
}(/Firefox/.test(window.navigator.userAgent));
window.onload = function () {
var wc = document.getElementById("ta");
wc.onmouseover = function () {
var wc = this, e = window.event;
if (!wc.contains(e.fromElement)) alert("over");
};
wc.onmouseout = function () {
var wc = this, e = window.event;
if (!wc.contains(e.toElement)) alert("out");
};
};
</script>
</head>
<body>
<br>
<br>
<br>
<br>
<br>
<br>
<table id="ta" width="350" border="0" cellspacing="0" cellpadding="0">
<tr>
<td bgcolor="#996633" id="1"> </td>
<td bgcolor="#234633" id="2"><button> Clos</button></td>
<td bgcolor="#0000FF" id="3"> </td>
</tr>
</table>
</body>
</html>
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/muxrwc/archive/2007/07/31/1718676.aspx
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>relatedTarget对象介绍</title>
<script type="text/javascript">
!function (bool) {
//兼容FF一些方法
var html;
if (bool) {
html = window.HTMLElement.prototype;
window.__defineGetter__("event", function () {
//兼容Event对象
var o = arguments.callee;
do {
if (o.arguments[0] instanceof Event) return o.arguments[0];
} while (o = o.caller);
return null;
});
Event.prototype.__defineGetter__('fromElement', function () {
return this.type == 'mouseover' ? this.relatedTarget : this.target;
});
Event.prototype.__defineGetter__("toElement", function () {
/*
这里：
onmouseover的时候relatedTarget为鼠标离开（onmouseout）的对象
onmouseout的时候relatedTarget为鼠标当前（onmouseover）的对象
*/
return this.type == 'mouseout' ? this.relatedTarget : this.target;
});
html.contains = function (o) {
return !!(this.compareDocumentPosition(o) & 16);
};
}
}(/Firefox/.test(window.navigator.userAgent));
window.onload = function () {
var wc = document.getElementById("ta");
wc.onmouseover = function () {
var wc = this, e = window.event;
if (!wc.contains(e.fromElement)) alert("over");
};
wc.onmouseout = function () {
var wc = this, e = window.event;
if (!wc.contains(e.toElement)) alert("out");
};
};
</script>
</head>
<body>
<br>
<br>
<br>
<br>
<br>
<br>
<table id="ta" width="350" border="0" cellspacing="0" cellpadding="0">
<tr>
<td bgcolor="#996633" id="1"> </td>
<td bgcolor="#234633" id="2"><button> Clos</button></td>
<td bgcolor="#0000FF" id="3"> </td>
</tr>
</table>
</body>
</html>
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/muxrwc/archive/2007/07/31/1718676.aspx
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