function desc_schema(s_id) {
window.open("desc_schema.php?s_id=" + s_id,"_blank","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=400, height=300")
}

function schema() {
window.open("schema.php","_blank","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=700, height=700")
}