function show_SPAW_editor(form, field)
{
        editor_w = 600;
        editor_h= 450;
        wnd =  window.open('spaw_editor.php?form=' + form + '&field=' + field,'SPAWN_editor','width=' + editor_w + ',height=' + editor_h + ', resizable');
        wnd.window.moveTo((screen.availWidth - editor_w)/2, screen.availHeight/2 - (editor_h/2));
}