Move over the table rows using the up and down arrows using the javascript

Question

i had a dynamically generated html table in jsp .
i need to move over the rows up and down .
when the up and down arrow keys are pressed Highlight the row and after moving when i press the enter key other required page is to be displayed .
please help me as soon as possible what events are to be used for the arrow keys and Highlight the row

Answer 1

i got the code for it
if (navigator.appName == "Microsoft Internet Explorer") {     
     document.onkeydown = processKeys;
} else {
     document.onkeypress = processKeys;
function processKeys(e) {  
     var keyID = (window.event) ? event.keyCode : e.keyCode;
     switch (keyID){
     // Key up.
     case 38:
          if (parseInt(currentRow) == parseInt(0)) {
               // reached the top of the table; do nothing.
               return true;
          } else {
               // move one row up.
               currentRow = parseInt(currentRow - 1);
               setCurrentRow (currentRow, currentRow + 1);
               return false;
          break;
     // Key down.
     case 40:
          if (currentRow == (numRows - 1)) {
               return true;
          } else {          
               currentRow++;
               setCurrentRow (currentRow, (currentRow - 1));
if (currentRow > VISIBLE_ROWS) {
return true;
} else {
               return false;
          break;
     // enter key     
     case 13:
          var curRowId = boardMemberListTable.rows[currentRow].id;          
          return false;
          break;
//onclick
function selectRow(row) {
     inQuad3Edit = false;
     searching = false;
     var eleTableRows = boardMemberListTable.getElementsByTagName("tr");
     for (var i = 0; i < eleTableRows.length; i++) { 
          if (eleTableRows.id != row.id){
               eleTableRows[i].className = "board-row-normal";
          } else {
               currentRow = i;          
     row.className = "board-row-sel";