/* signature: sayMagicWord: void -> void
   purpose: expects nothing and returns nothing, 
            but has the
            side-effect of causing a pop-up 
            saying "PLEASE!"
            to appear

   adapted from: "Web Programming Step by Step", 
        Stepp, Miller, Kirst,
        pp. 235-238
   adapted by: Sharon Tuttle
   last modified: 2-20-13
*/

function sayMagicWord()
{
    // grab the textfield object for the 
    //    textfield with id enteredName

    var nameField = document.getElementById("enteredName");
   
    // if this textfield is not empty, use it to customize a plea
    //     in an alert pop-up (otherwise, use a default plea)

    if (nameField.value === "")
    {
        alert("PLEASE to unknown person!");
    }
    else
    {
        alert("PLEASE! " + nameField.value);
    }
}