javascript

Js pops up the dialog box to confirm whether to delete


<!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=utf-8" />
<title> Confirm whether to delete </title>
<script type="text/javascript">
function del(){
if(!confirm(" Are you sure you want to delete? ")){
window.event.returnValue = false;
}
}
</script>
</head>
<body>
<a href="http://www.baidu.com" onclick="return del()"> delete </a>
</body>
</html>