Program Plan: Include the HTML tag using “<html>”. Include the heading tag using “<head>”. Open the title tag using “<title>” with appropriate title and close the tag. Set the “meta” tag using “<meta>”. Open the style tag “<style>” to make style for HTML tags. Make a style for “input” type. Set the display as “block”. Set the “margin-bottom” as “1em”. Make a style for “label” element and set the properties of label. Make a style for “submit” element with margin-left property. Open the script tag using “<script>”. Define the function named “validateForm()” to validate the user name, age and city. Check the condition for user name, if user name is “Null” then display the alert message and return “false”. Check the condition for age. If user’s age is less than 18 display the alert message and return “false”. Check the condition for city input. If the input box for city is “Null” then display the alert message “City field cannot be empty” and return “false”. Display the alert message for valid inputs and return “true”. Close the script tag using “</script>”. Close the head tag using “</head>”. Open the heading tag with appropriate heading using “<h1>” tag and close it. Open the form tag with “post” method, when the “onsubmit” event handler clicks by the user the “validateForm()” function called to validate the inputs. Create the additional label and input type for “City” input. Close the form tag using “</form>”. Close the body tag using “</body>”. Close the file using “</html>” tag.

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Chapter 14, Problem 6HOE

Program Plan Intro

Program Plan:

Include the HTML tag using “<html>”.

Include the heading tag using “<head>”.

Open the title tag using “<title>” with appropriate title and close the tag.

Set the “meta” tag using “<meta>”.

Open the style tag “<style>” to make style for HTML tags.

Make a style for “input” type.

Set the display as “block”.

Set the “margin-bottom” as “1em”.

Make a style for “label” element and set the properties of label.

Make a style for “submit” element with margin-left property.

Open the script tag using “<script>”.

Define the function named “validateForm()” to validate the user name, age and city.

Check the condition for user name, if user name is “Null” then display the alert message and return “false”.

Check the condition for age. If user’s age is less than 18 display the alert message and return “false”.

Check the condition for city input. If the input box for city is “Null” then display the alert message “City field cannot be empty” and return “false”.

Display the alert message for valid inputs and return “true”.

Close the script tag using “</script>”.

Close the head tag using “</head>”.

Open the heading tag with appropriate heading using “<h1>” tag and close it.

Open the form tag with “post” method, when the “onsubmit” event handler clicks by the user the “validateForm()” function called to validate the inputs.

Create the additional label and input type for “City” input.

Close the form tag using “</form>”.

Close the body tag using “</body>”.

Close the file using “</html>” tag.

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