hardrisk.github.io/gizlibuton.html at master · hardrisk/hardrisk.github.io · GitHub

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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Show and hide div with JavaScript</title>
<script>

    var button_beg = '<button style="border: none;background-color: transparent;outline: none;width: 16px;height: 16px" id="button" onclick="showhide()">', button_end = '</button>';
    var show_button = '', hide_button = '';
    function showhide() {
        var div = document.getElementById( "hide_show" );
        var showhide = document.getElementById( "showhide" );
        if ( div.style.display !== "none" ) {
            div.style.display = "none";
            button = show_button;
            showhide.innerHTML = button_beg + button + button_end;
        } else {
            div.style.display = "block";
            button = hide_button;
            showhide.innerHTML = button_beg + button + button_end;
        }
    }
    function setup_button( status ) {
        if ( status == 'show' ) {
            button = hide_button;
        } else {
            button = show_button;
        }
        var showhide = document.getElementById( "showhide" );
        showhide.innerHTML = button_beg + button + button_end;
    }
    window.onload = function () {
        setup_button( 'hide' );
        showhide(); // if setup_button is set to 'show' comment this line
    }
</script>
</head>
<body>
<center>
    <div id="showhide"></div>
    <div id="hide_show">
        <p>This div will be show and hide on button click</p><br><p>transparent</p><br>
        <textarea autofocus></textarea><br>
    </div>
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
kaynak:<br>
https://stackoverflow.com/a/22672469<br>
https://stackoverflow.com/questions/16308779/how-can-i-hide-show-a-div-when-a-button-is-clicked<br>
</center>
</body>
</html>