[form] fix #719285, due to multiple calls to restore_previous_post, by proper refactorings * move __init__ code from FieldsForm to Form. Must behaviour here should actually be in the Form base class * avoid buggy duplicated call to restore_previous_post * move some code that was in the form renderer to the form'__init__ method (__redirectpath & __form_id hidden input handling)) * 'formvid' should now be specified on form selection, not on form rendering

     1

function set_tab(tabname, cookiename) {

     2

    // set appropriate cookie

     3

    asyncRemoteExec('set_cookie', cookiename, tabname);

     4

    // trigger show + tabname event

     5

    trigger_load(tabname);

     6

}