/*
Written by Burt Petrescue 2007
Wrapper for AJForm (http://projects.aphexcreations.net/ajform/)

Compatibility: Works in Mozilla FireFox 1.5+ and IE 6+ (and 5+?). inc_ajform.js does not work with Opera yet.
*/

document.write('<div id="ajf_div" style="display:none;"></div>');

var ajf_n = new Array();
var ajf_v = new Array();
var ajf_t = new Array();

function ajf_clearfields(){
 ajf_n = new Array();
 ajf_v = new Array();
 ajf_t = new Array();
}

function ajf_fieldexists(fname){
 for (var i=0;i<ajf_n.length;i++){
  if (ajf_n[i]==fname) return true;
 }
 return false;
}

function ajf_dropfield(fname){
 for (var i=0;i<ajf_n.length;i++){
  if (ajf_n[i]==fname){
  ajf_n[i]='';
  return;
  }
 }
}

function ajf_addfield(fname,fvalue){
 //takes raw data, not html prepped
 var ajfid=ajf_n.length;
 ajf_n[ajfid]=fname;
 ajf_v[ajfid]=fvalue;
 ajf_t[ajfid]=false;
}

function ajf_addtfield(fname,fvalue){
 //takes raw data, not html prepped
 var ajfid=ajf_n.length;
 ajf_n[ajfid]=fname;
 ajf_v[ajfid]=fvalue;
 ajf_t[ajfid]=true;
}

function ajf_grabform(formobj){
 ajf_clearfields();
 var fieldname='';
 var fieldvalue='';
 for (var i=0;i<formobj.elements.length;i++){
  var formelement=formobj.elements[i];
  fieldname=formelement.name;
  switch (formelement.type){
   case 'checkbox':
   case 'radio':
    if (formelement.checked) {
     ajf_addfield(fieldname,formelement.value);
    } else {
     if (!ajf_fieldexists(fieldname))
      ajf_addfield(fieldname,'');
    }
    break;
   case 'text':
   case 'hidden':
   case 'password':
    ajf_addfield(fieldname,formelement.value);
    break;
   case 'textarea':
    ajf_addtfield(fieldname,formelement.value);
    break;
   case 'select-one':
   case 'select-multiple':
    ajf_addfield(fieldname,formelement.options[formelement.selectedIndex].value);
    break;
  }
 }
}

var ajfw_precallback=null;
var ajfw_postcallback=null;
var ajfw_postcallback_p1=null;//_p1 = parameter #1
var ajfw_waiting=false;

function ajf_submit(url,precallback,postcallback,postcallback_p1){
 var h='<form action="'+url+'" method=post onsubmit="ajfprecallback(); ajform:ajfpostcallback();" name="ajf_form" id="ajf_form">';
 for (i=0;i<=ajf_n.length-1;i++){
  if (ajf_n[i]!=''){
   if (ajf_t[i])
    h+='<textarea name="'+ajf_prepinput(ajf_n[i])+'">'+ajf_prepinput(ajf_v[i])+'</textarea>';
   else
    h+='<input name="'+ajf_prepinput(ajf_n[i])+'" value="'+ajf_prepinput(ajf_v[i])+'">';
  }
 }
 h+='<input type=submit name="ajf_submit" id="ajf_submit"></form>';
 ajf_n=new Array();
 ajf_v=new Array();
 changetext('ajf_div',h);
 ajfw_precallback=precallback;
 ajfw_postcallback=postcallback;
 ajfw_postcallback_p1=postcallback_p1;
 AJForm.register(document.ajf_form);
 document.ajf_form.ajf_submit.click();
}

function ajf_prepinput(x){
 if (typeof x=='number')
  return x;
 if (x==null)
  return '';
 return x.replace(RegExp('&','g'),'&amp;').replace(RegExp('"','g'),'&quot;');
}

function ajfpostcallback(data,statusCode,statusMessage){
 if (ajfw_postcallback==null) return;
 if (ajfw_postcallback_p1==null)
  ajfw_postcallback(data,(statusCode==0))
 else
  ajfw_postcallback(data,(statusCode==0),ajfw_postcallback_p1)
 ajfw_waiting=false;
}

function ajfprecallback(f){
 if (ajfw_waiting) return false;
 ajfw_waiting=true;
 if (ajfw_precallback!=null)
  ajfw_precallback();
 return true;
}