http://lcx.cc/?i=3065
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript">
<!--
checkInstalled = function(m) {
switch(m){
case 'msn':
try {
new ActiveXObject("MSNMessenger.P4QuickLaunch");
return true;
}
catch (e) {
return false;
}
case 'qq':
try {
new ActiveXObject("TimwpDll.TimwpCheck");
return true;
}
catch (e) {
return false;
}
case 'skype':
try{
new ActiveXObject("Skype.Detection");
return true;
}catch(e){
return false;
}
}
}
//-->
</script>
</head>
<body>
<input type="button" value="检测有没有安装MSN" onclick="alert(checkInstalled('msn'))" />
<input type="button" value="检测有没有安装QQ" onclick="alert(checkInstalled('qq'))" />
<input type="button" value="检测有没有安装SKYPE" onclick="alert(checkInstalled('skype'))" />
</body>
</html>
