function setPointer(theRow, thePointerColor)
{
    if (thePointerColor == '' || typeof(theRow.style) == 'undefined') {
        return false;
    }
    if (typeof(document.getElementsByTagName) != 'undefined') {
        var theCells = theRow.getElementsByTagName('td');
    }
    else if (typeof(theRow.cells) != 'undefined') {
        var theCells = theRow.cells;
    }
    else {
        return false;
    }

    var rowCellsCnt  = theCells.length;
    for (var c = 0; c < rowCellsCnt; c++) {
        theCells[c].style.backgroundColor = thePointerColor;
    }

    return true;
}

function weather(code) {
  var page="/wetter.html?code=" + code;
  windowprops="width=200, height=220, locationbar=no, scrollbars=yes, menubars=no,toolbars=no, resizable=yes";
  window.open(page, "Wetter", windowprops);
}

function swap_content( span ) {
    displayType = ( document.getElementById( span ).style.display == 'none' ) ? 'block' : 'none';
    document.getElementById( span ).style.display = displayType;
}