// select all function for admin/content

var checkflag = "false";
function check(field) {
    if (checkflag == "false") {
        for (i = 0; i < field.length; i++) {
            field[i].checked = true;
        }
        checkflag = "true";
        return "Uncheck All"; 
    }
    else {
        for (i = 0; i < field.length; i++) {
        field[i].checked = false; }
        checkflag = "false";
        return "Check All"; 
    }
}