onclick event for label (HTML4 & HTML5)

Prompt box used for taking input from user. If you click on ok button then it return input value else it return null

In JavaScript there are functions that can be used to URL encode a string. In JavaScript you can use the encodeURI function

JavaScript is a client side scripting language that can make your webpage intaractive and JavaScript can be embbeded into your static HTML webpage directly.

Javascript Events are the actions which are detected by the javascript when they are fired.

The HTML5 Geolocation API is used to get the geographical position of a user. NOTE: Since this can compromise user privacy, the position is not available unless the user approves it.

JavaScript setTimeout function provides the functionality to execute the specified function after the sepcified number of milliseconds. Using the JavaScript setTimeout function you can set the delay before function execution.

The switch statement is used to select one statement from the many blocks. This is used on place of nested if…else. If there are number of if..else statements then we should use switch.

JavaScript clearTimeout function enables you to stop the timer event started by the JavaScript setTimeout function. When you apply the setTimeout function using a recursive loop over the JavaScript function by specifying the time delay then it calls the function continuously after equal intervals of time.

A function in Javascript is a group of statement that is executed when it's triggered. A function can be called from anywhere within the page. As it is the part of javascript it is defined under the <script> tag.

JavaScript if…else is a conditional statement that is used to check wether a condition is true or false to take a decision.

Javascripts loops are similar to other programming languages. Loops allows us to execute a block of statements to the specified number of times.

JavaScript clearInterval function enables you to stop the timer event started by the JavaScript setIntterval function. When you apply the setInterval function a JavaScript function by specifying the time interval then it calls the function continuously after equal intervals of time.

Example form using <legend> and <fieldset> to make the form layout fancy.

Javascript Try…catch statement to check if there is errors in a block of code.

<a> tag has a "onclick" event that is triggered when clicked. This is a good place to use JavaScript to build nire interactivity into your web page.

Here in a text box the timer is display on "start count" button click and stop on "start count " click

CSS display block property displays the HTML elements in the block.

HTML script tag is used to define an section with javascript. In our example we have created two javascript function in the header. Note that each link shows a different way of calling the function.

Create a new window and move new browser window.

CSS pseudo-classes are used to add special effects to some selectors.

The switch statement is used to select one statement from the many blocks. This is used on place of nested if…else. If there are number of if..else statements then we should use switch.

A function can take arguments whenever it is called. When arguments are passed on calling of function, the fuction is called 'function with arguments'. When a funtion does not take any argument function is called 'function without argument'. A function can return a value using the keyword 'return'.

The Frame and Iframe represents html frame and iframe respectively.This DOM object has all the properties that a HTML element has. We can change these properties using javascript.

Opens a dialog window for printing the current web page.

Javascript provides us the facility to break a loop in middle and also to continue the loop without executing the whole body of the loop.There are two keywords that provides these facilities: 1) break 2) continue

JavaScript random method returns a random number between 0 and 1.

Count number of attributes that exists for the button.

This statement allows us to select one statement among many statements.It is also called nested if….else.

Do…While loop is the varient of the while loop. The difference between while and do…while is that while loop only executes if the condition is true while do….while loop executes atleast once even the codition is false.

We are here using Core DOM setAttribute method we set the value of input type text to button.

The link object is used to include the external file in the web page. This tag must be inside the head tag of the page. Here is the example of the link that give the type of the external sheet.