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Create a JavaScript enabled webpage for Unit Conversions. The web page must be able to convert units for Area, Length and Temperature.

Create a JavaScript enabled webpage for Unit Conversions. The web page must be able to convert units for Area, Length and Temperature. The webpage will have 1 textbox, 1 drop down menu, 2 option boxes and 1 command button.

The user can enter the value to be converted in the textbox and select the type of conversion from the dropdown menu. The 2 option boxes must be populated with different options depending on the user's selection from the drop down menu. Example, if the user selects "Length" option, then both option boxes must be populated with the options like "Centimeter", "Feet" and "Inches".

The user can then select the units from the option boxes. On the click of the command button, call the JavaScript function that will perform the selected conversion and display the result in the Alert box. If the textbox is empty or the value entered is not a number, display an appropriate message using an Alert box.

Following options must be available for each of the unit type:

Temperature: Celsius, Farenheit, Kelvin Area: Acre, Square foot Length: Centimeter, Feet, Inches.

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