function setPointer(theRow, theRowNum, 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;
            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

function imgFit (img, maxImgWidth) 
{ 
   if (typeof img.naturalWidth == 'undefined') { 
      img.naturalHeight = img.height; 
      img.naturalWidth = img.width; 
   } 
   if (img.width > maxImgWidth) { 
      img.height = Math.round(((maxImgWidth)/img.width)*img.height); 
      img.width = maxImgWidth; 
      img.title = 'Нажмите на картинку для увеличения'; 
      img.style.cursor = 'move'; 
   } else if (img.width == maxImgWidth && img.width < img.naturalWidth) { 
      img.height = img.naturalHeight; 
      img.width = img.naturalWidth; 
      img.title = 'Нажмите на картинку для помещения в размер окна'; 
   } 
}

var tid = 0, x = 0, y = 0;
var obj;

document.onmousemove=track;

function track(e)
{
    x = (document.all) ? window.event.x + document.body.scrollLeft : e.pageX;
    y = (document.all) ? window.event.y + document.body.scrollTop : e.pageY;
}

function show(id)
{
    obj = document.getElementById("popup" +id);
    obj.style.left = x + 5;
    obj.style.top = y - 75;
    obj.style.display = "block";
    tid = window.setTimeout("show("+id+")",1);
}

function hide(id)
{
    obj = document.getElementById("popup" +id);
    window.clearTimeout(tid);
    obj.style.display = "none";
}