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function setPointer(theRow, theRowNum, theAction, theDefaultColor, thePointerColor, theMarkColor)

{

    var theCells = null;

    var marked_row = new Array;



    // 1. Pointer and mark feature are disabled or the browser can't get the

    //    row -> exits

    if ((thePointerColor == '' && theMarkColor == '')

        || typeof(theRow.style) == 'undefined') {

        return false;

    }



    // 2. Gets the current row and exits if the browser can't get it

    if (typeof(document.getElementsByTagName) != 'undefined') {

        theCells = theRow.getElementsByTagName('td');

    }

    else if (typeof(theRow.cells) != 'undefined') {

        theCells = theRow.cells;

    }

    else {

        return false;

    }



    // 3. Gets the current color...

    var rowCellsCnt  = theCells.length;

    var domDetect    = null;

    var currentColor = null;

    var newColor     = null;

    // 3.1 ... with DOM compatible browsers except Opera that does not return

    //         valid values with "getAttribute"

    if (typeof(window.opera) == 'undefined'

        && typeof(theCells[0].getAttribute) != 'undefined') {

        currentColor = theCells[0].getAttribute('bgcolor');

        domDetect    = true;

    }

    // 3.2 ... with other browsers

    else {

        currentColor = theCells[0].style.backgroundColor;

        domDetect    = false;

    } // end 3



    // 4. Defines the new color

    // 4.1 Current color is the default one

    if (currentColor == ''

        || currentColor.toLowerCase() == theDefaultColor.toLowerCase()) {

        if (theAction == 'over' && thePointerColor != '') {

            newColor              = thePointerColor;

        }

        else if (theAction == 'click' && theMarkColor != '') {

            newColor              = theMarkColor;

            marked_row[theRowNum] = true;

        }

    }

    // 4.1.2 Current color is the pointer one

    else if (currentColor.toLowerCase() == thePointerColor.toLowerCase()

             && (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])) {

        if (theAction == 'out') {

            newColor              = theDefaultColor;

        }

        else if (theAction == 'click' && theMarkColor != '') {

            newColor              = theMarkColor;

            marked_row[theRowNum] = true;

        }

    }

    // 4.1.3 Current color is the marker one

    else if (currentColor.toLowerCase() == theMarkColor.toLowerCase()) {

        if (theAction == 'click') {

            newColor              = (thePointerColor != '')

                                  ? thePointerColor

                                  : theDefaultColor;

            marked_row[theRowNum] = (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])

                                  ? true

                                  : null;

        }

    } // end 4



    // 5. Sets the new color...

    if (newColor) {

        var c = null;

        // 5.1 ... with DOM compatible browsers except Opera

        if (domDetect) {

            for (c = 0; c < rowCellsCnt; c++) {

                theCells[c].setAttribute('bgcolor', newColor, 0);

            } // end for

        }

        // 5.2 ... with other browsers

        else {

            for (c = 0; c < rowCellsCnt; c++) {

                theCells[c].style.backgroundColor = newColor;

            }

        }

    } // end 5



    return true;

} // end of the 'setPointer()' function