// JavaScript Document
/* standard small functions */
function $m(quem){
 return document.getElementById(quem)
}
function remove(quem){
 quem.parentNode.removeChild(quem);
}
function addEvent(obj, evType, fn){
 // elcio.com.br/crossbrowser
    if (obj.addEventListener)
        obj.addEventListener(evType, fn, true)
    if (obj.attachEvent)
        obj.attachEvent("on"+evType, fn)
}
function removeEvent( obj, type, fn ) {
  if ( obj.detachEvent ) {
    obj.detachEvent( 'on'+type, fn );
  } else {
    obj.removeEventListener( type, fn, false ); }
} 
/* THE UPLOAD FUNCTION */
function micoxUpload(form,url_action,id_element,html_error_http){
 //testing if 'form' is a html object or a id string
 form = typeof(form)=="string"?$m(form):form;
 
 var erro="";
 if(form==null || typeof(form)=="undefined"){ erro += "The form declaration is invalid.\n";}
 else if(form.nodeName.toLowerCase()!="form"){ erro += "The form is missing.\n";}
 if($m(id_element)==null){ erro += "The display id is missing.\n";}
 if(erro.length>0) {
  alert(erro);
  return;
 }

 //creating the iframe
 var iframe = document.createElement("iframe");
 iframe.setAttribute("id","micox-temp");
 iframe.setAttribute("name","micox-temp");
 iframe.setAttribute("width","0");
 iframe.setAttribute("height","0");
 iframe.setAttribute("border","0");
 iframe.setAttribute("style","width: 0; height: 0; border: none;");
 
 //add to document
 form.parentNode.appendChild(iframe);
 window.frames['micox-temp'].name="micox-temp";
 
 //add event
 var carregou = function() { 
   removeEvent( $m('micox-temp'),"load", carregou);
   var cross = "javascript: ";
   cross += "window.parent.$m('" + id_element + "').innerHTML = document.body.innerHTML; void(0); ";
   
   $m(id_element).innerHTML = html_error_http;
   $m('micox-temp').src = cross;
   //del the iframe
   setTimeout(function(){ remove($m('micox-temp'))}, 250);
  }
 addEvent( $m('micox-temp'),"load", carregou)
 
 //properties of form
 form.setAttribute("target","micox-temp");
 form.setAttribute("action",url_action);
 form.setAttribute("method","post");
 form.setAttribute("enctype","multipart/form-data");
 form.setAttribute("encoding","multipart/form-data");
 //submit
 form.submit();
 
 //while loading
  $m(id_element).innerHTML = "<img src='images/pleasewait.gif'>";
	
 
}