str += '</select>'
str += '<span style="margin-left:20px;padding:1px;border:solid #cccccc 1px">color scheme: <span style="margin-left:5px;background-color:#66ff66"> > 12 M</span><span style="margin-left:5px;background-color:#00ccff"> > 5 M</span><span style="margin-left:5px;background-color:#ffcc33"> > 3 M</span><span style="margin-left:5px;background-color:#ff3300"> < 3 M</span></span>'
str += '<span style="margin-left:20px">'
str += '</select>'
str += '<span style="margin-left:20px;padding:1px;border:solid #cccccc 1px">color scheme: <span style="margin-left:5px;background-color:#66ff66"> > 12 M</span><span style="margin-left:5px;background-color:#00ccff"> > 5 M</span><span style="margin-left:5px;background-color:#ffcc33"> > 3 M</span><span style="margin-left:5px;background-color:#ff3300"> < 3 M</span></span>'
str += '<span style="margin-left:20px">'