var time = new Date();
var month = time.getMonth();

if (month < 12) {
month = month + 1;
}
var date = 0;
var future = 12; 
document.writeln ("<OPTION value=\"\">");
do {
date++;
if (date < 10)	date = "0" + date;
	
document.write ("<OPTION value=\"" +date+"\">" +date+ "</OPTION> ");
}
while (date < future)
document.write ("</SELECT>");