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- <html>
- <script>
- function checknames(str) {
- if (str.length == 0) {
- document.getElementById("namecheck").innerHTML = "";
- return;
- } else {
- var xhttp = new XMLHttpRequest();
- xhttp.onreadystatechange = function() {
- if (this.readyState == 4 && this.status == 200) {
- document.getElementById("namecheck").innerHTML = this.responseText;
- }
- };
- xhttp.open("GET", "namecheck.php?q=" + str, true);
- xhttp.send();
- }
- }
- </script>
- <body>
- <h2>ajaxtest check if name is in file</h2>
- <form action="/action_page.php">
- <input type="text" id="name" name="name" onblur="checknames(this.value + '@testmail.ch')">
- </form>
- <div id="namecheck">
- not checked
- </div>
- </body>
- </html>
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