function set_total(index){ //합계.
var sum = 0;
var index = index+1;
$("#stats_tbl tbody tr:not(:last-child)").each(function() {
var count = parseInt($(this).find("td:eq("+index+")").text());
if (!isNaN(count)) {
sum+= count;
}
});
//console.log(index);
return sum;
}