Javascript class. 4.4 modify this script to use promt to input a number n that is the number of the fibonacci number...

4.4 modify this script to use promt to input a number n that is the number of the fibonacci number as output

<!--

var i;

var fib = []; 

fib[0] = 0;

fib[1] = 1;

for(i=2; i<=10; i++)

{

    fib[i] = fib[i-2] + fib[i-1];

   document.write(fib[i]);

}

4.5 Input: A text string, using prompt

    Output: either"valid name" or "invalid name",depending on whether the input names fit the required format, which is 

Last name, first name, middle initial 

where neither of the names can have more than 15 characters

4.6 Input : A line of text, using prompt.

    Output: The words of the input text, in alphabetical order.