var bordersize;
bordersize = prompt("border width:0, 1, 4, 8", "1");

switch (bordersize) {
  case "0": window.document.write("<table>");
            break;
  case "1": window.document.write('<table style="border:1px solid yellow; background-color: grey">');
            break;
  case "4": window.document.write('<table style="border:4px solid yellow; background-color: red">');
            break;
  case "8": window.document.write('<table style="border:8px solid bluew; background-color: yellow">');
            break;
  default:  window.document.write("Error - invalid choice: ", 
                            bordersize, "<br />");
} 

window.document.write("<caption> 2007 NFL Divisional",
               " Winners </caption>");
window.document.write("<tr>",
               "<th />",
               "<th> American Conference </th>",
               "<th> National Conference </th>",
               "</tr>",
               "<tr>",
               "<th> East </th>",
               "<td> New England Patriots </td>",
               "<td> Dallas Cowboys </td>",
               "</tr>",
               "<tr>",
               "<th> North </th>",
               "<td> Pittsburgh Steelers </td>",
               "<td> Green Bay Packers </td>",
               "</tr>",
               "<tr>",
               "<th> West </th>",
               "<td> San Diego Chargers </td>",
               "<td> Seattle Seahawks </td>",
               "</tr>",
               "<tr>",
               "<th> South </th>",
               "<td> Indianapolis Colts </td>",
               "<td> Tampa Bay Buccaneers </td>",
               "</tr>",
               "</table>");