function pageCall(page, method, params, callback) {
    $.ajax({
        type: "POST",
        url: page + "/" + method,
        data: params || "{}",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: callback
    });
}

function castBool(literal) {
    
    if (literal.toLowerCase() == "false") {
        return false;
    }
    else if (literal.toLowerCase() == "true") {
        return true;
    }
    
    return Boolean(literal);
}

function txtSelectAll(elem) {
    elem.select();
}