var select_month=new Array('Null', 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
var datenow=new Date();
var month=datenow.getMonth()+1;
var year=datenow.getFullYear();
for(var i=1; i<=13; i++)
{
	document.write("<option value='" + year + "-" + month + "'>" + select_month[month] + "-" + year + "</option>");
	if ( month >= 12 )
	{
		year++;
		month=1;
	} else
	{
		month++;
	}
}