JavaScript mouse over event (onmouseover)
Mouse over event, when the mouse moves over an object, the object triggers the onmouseover event and executes the program called by the onmouseover event.
Example: When the mouse moves to the element bound to the onmouseover event, a dialog box pops up
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>php.cn</title>
<script>
function fun(){
window.alert("請確認四周沒有人再點擊提交")
}
</script>
</head>
<body>
<form>
機密：
<input name="txt" type="text" >
<input name="" type="button" value="提交" onmouseover="fun()"/>
</form>
</body>
</html>
