Develop a very simple code in javascript and html

first :Develop a very simple currency converter form. The amount value is entered using a text field. There are two drop down lists for selecting the currency (FROM-TO) as shown below. The result text box value change depending upon the currency selected from the drop down list. second: Make use of a two-dimensional array to solve the following problem: A bank has three different (1 to 3) types of customers, who can have four different types (1 to 4) of account. Each customer can deposit money using a form. The form contains 1. The Customer Type 2. The Account Type 3. The amount deposited by the customer. Assume that the information from all the forms for last month is available. Create a script that will read all this information for last month's account and summarize the total amount by customer. All totals should be stored in the twodimensional array. After processing all the information for last month, display the results in an HTML table format, with each of the columns representing a different account type. Cross-total each row to get the total deposited amount of each customer for last month. Your tabular printout should include these crosstotals to the right of the totaled rows and to the bottom of the totaled columns.