<br /><br />window.addeventlistener("keydown", function (event) {<br /><br /> if (event.defaultprevented) {<br /> return; / do nothing if the event was already processed<br /> }<br /><br /> switch (event.key) {<br /> case "o":<br />{<br /> <?php<br /> echo "kocham";<br /> ?><br />}<br /> break;<br /> case "arrowup":<br /> // do something for "up arrow" key press.<br /> break;<br /> case "arrowleft":<br /> // do something for "left arrow" key press.<br /> break;<br /> case "arrowright":<br /> // do something for "right arrow" key press.<br /> break;<br /> case "enter":<br /> // do something for "enter" or "return" key press.<br /> break;<br /> case "escape":<br /> // do something for "esc" key press.<br /> break;<br /> default:<br /> return; // quit when this doesn't handle the key event.<br /> }<br /><br /> // cancel the default action to avoid it being handled twice<br /> event.preventdefault();<br />}, true);<br /><br /><br /> doesn't exist. Closest matches: