Ajax(http://www.w3school.com.cn/ajax/ajax_xmlhttprequest.asp)
<html>
<body>
<script type="text/javascript">
function ajaxFunction()
{
var
try
{
// Firefox, Opera 8.0+, Safari
}
catch (e)
{
// Internet Explorer
try
{
}
catch (e)
{
try
{
}
catch (e)
{
alert("您的浏览器不支持AJAX!");
return false;
}
}
}
}
</script>
<form name="myForm">
用户: <input type="text" name="username" />
时间: <input type="text" name="time" />
</form></body>
</html>
<body>
<script type="text/javascript">
function ajaxFunction()
{
var
xmlHttp;try
{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest();}
catch (e)
{
// Internet Explorer
try
{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}
catch (e)
{
try
{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}
catch (e)
{
alert("您的浏览器不支持AJAX!");
return false;
}
}
}
}
</script>
<form name="myForm">
用户: <input type="text" name="username" />
时间: <input type="text" name="time" />
</form></body>
</html>
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