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">
var maximal = 10;
var id = 'feld';
function zaehle(){
var anzahl = maximal - document.getElementById(id).value.length;
document.getElementById('zaehler').firstChild.nodeValue = anzahl;
if(anzahl == 0)
document.getElementById(id).disabled = "disabled";
}
</script>
<div id="zaehler">10</div>
<input type="text" onkeydown="setTimeout('zaehle()', 10)" id="feld"/>