function setPointer(theRow, theAction, theDefaultColor, thePointerColor, theMarkColor)
{
    var theCells = null;

    // 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;
	}
    }
    // 4.1.2 Current color is the pointer one
    else if (currentColor.toLowerCase() == thePointerColor.toLowerCase()) {
	if (theAction == 'out') {
	    newColor = theDefaultColor;
	}
	else if (theAction == 'click' && theMarkColor != '') {
	    newColor = theMarkColor;
	}
    }
    // 4.1.3 Current color is the marker one
    else if (currentColor.toLowerCase() == theMarkColor.toLowerCase()) {
	if (theAction == 'click') {
	    newColor = (thePointerColor != '')
		     ? thePointerColor
		     : theDefaultColor;
	}
    } // 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