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2. Write a JavaScript to create a. Alert Dialog Box b. Confirmation Dialog Box c. Prompt...

2. Write a JavaScript to create

a. Alert Dialog Box

b. Confirmation Dialog Box

c. Prompt Dialog box

3. Write a JavaScript to Change an image when a user holds down the mouse button.

4. Write a JavaScript to display all the cookies set on your machine.

5. Write a JavaScript to disable right click on the page

engineering   Computer-Science   
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Homework Answers

Answer #1

3.

CODE

<!DOCTYPE html>
<html>
<head>
<script>
function lighton() {
document.getElementById('myimage').src = "bulbon.gif";
}
function lightoff() {
document.getElementById('myimage').src = "bulboff.gif";
}
</script>
</head>

<body>

<img id="myimage" onmousedown="lighton()" onmouseup="lightoff()" src="bulboff.gif" width="100" height="180" />

<p>Click mouse and hold down!</p>

</body>
</html>

4.

CODE

function get_cookies_array() {

    var cookies = { };

    if (document.cookie && document.cookie != '') {
        var split = document.cookie.split(';');
        for (var i = 0; i < split.length; i++) {
            var name_value = split[i].split("=");
            name_value[0] = name_value[0].replace(/^ /, '');
            cookies[decodeURIComponent(name_value[0])] = decodeURIComponent(name_value[1]);
        }
    }

    return cookies;
   
}

var cookies = get_cookies_array();
for(var name in cookies) {
  document.write( name + " : " + cookies[name] + "<br />" );
}

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