A perfect palindrome is a word or phrase that is identical forward or backward, such as the word racecar, mom, or dad. An example of a standard palindrome is Madam, Im Adam because the characters are identical forwards or backwards, provided you remove the spaces, and punctuation marks. Write a script that checks whether a word entered by a user is a palindrome. To check for a standard palindrome use a function to remove the punctuation marks (comma, apostrophe, period, and exclamation point) and a function to remove the extra spaces. Use an HTML document containing a form with a single textbox to enter the string text and a single script to display and process the form. Save the documents as palindrome.php and palindrome.html.