/* 서명 높이 조절 */
function resizeMemberSignature(height) {
    var obj_list = xGetElementsByTagName('div')
    var ms_height = height ? height : 100
    for(i=0;i<obj_list.length;i++) {
        if(obj_list[i].className == "member_signature") {
            if(xHeight(obj_list[i]) > ms_height) obj_list[i].style.height = ms_height + 'px'
            obj_list[i].style.overflow = "auto"
        }
    }
}