Follow along with the video below to see how to install our site as a web app on your home screen.
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<script type="text/javascript">
// Die Funktion GetRequestObject() habe ich hochgeladen
function CheckUsername()
{
var username = document.getElementById('username').value;
r_obj = GetRequestObject();
r_obj.onreadystatechange = function()
{
if (r_obj.readyState==4) alert("Frei:"+r_obj.responseText);
}
r_obj.open("GET","check.php?username="+username); // Ggf. url kodieren
r_obj.send(null);
}
</script>
<input type="text" name="username" onKeyUp="CheckUsername()">
var username = document.getElementById('username').value;
<input type="text" name="username" id="username" onkeyup="CheckUsername()">
<html>
<head>
<title>test</title>
<script type="text/javascript">
// Die Funktion GetRequestObject() habe ich hochgeladen
function CheckUsername()
{
var username = document.getElementById('username').value;
r_obj = GetRequestObject();
r_obj.onreadystatechange = function()
{
if (r_obj.readyState==4) alert("Frei:"+r_obj.responseText);
}
r_obj.open("GET","check.php?username="+username); // Ggf. url kodieren
r_obj.send(null);
}
</script>
</head>
<body>
<input type="text" name="username" id="username" onKeyUp="CheckUsername()">
</body>
</html>
<form action="">
<input type="text" name="username" id="username" onkeyup="CheckUsername()">
</form>