/**
 * Sets/unsets the pointer and marker in browse mode
 *
 * @param   object    the table row
 * @param   interger  the row number
 * @param   string    the action calling this script (over, out or click)
 * @param   string    the default background color
 * @param   string    the color to use for mouseover
 * @param   string    the color to use for marking a row
 *
 * @return  boolean  whether pointer is set or not
 */
function setBackground(theRow, theAction, theDefaultColor, thePointerColor)
{
    var theCells = null;

    // 1. Pointer and mark feature are disabled or the browser can't get the
    //    row -> exits
    if (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') {
            newColor              = thePointerColor;
        }
    }
    // 4.1.2 Current color is the pointer one
    else if (currentColor.toLowerCase() == thePointerColor.toLowerCase()) {
        if (theAction == 'out') {
            newColor              = 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 'setBg()' function


function setBgInhalt(theRow, theAction)
{
   setBackground(theRow, theAction, "#FFFFCC", "#CCFFCC");
}

function setBg(theRow, theAction)
{
   setBackground(theRow, theAction, "#FFFFCC", "#FFFF99");
}

function setBgProg(theRow, theAction, theDefault)
{
   setBackground(theRow, theAction, theDefault, "#FFCC99");
}



function writeEditLink(tourId,was) {
  var win_ie_ver = parseFloat(navigator.appVersion.split("MSIE")[1]);
  if (navigator.userAgent.indexOf('Mac')        >= 0) { win_ie_ver = 0; }
  if (navigator.userAgent.indexOf('Windows CE') >= 0) { win_ie_ver = 0; }
  if (navigator.userAgent.indexOf('Opera')      >= 0) { win_ie_ver = 0; }
  if (win_ie_ver >= 5.5) {
    document.write('<a href="/tourench3.php?id=' +tourId+ '&action=edit&edit='+was+'">Editor benutzen</a><br>');
  } 
  else { 
    // nothing 
  }
}