function ajaxobj() {
	try { 
		_ajaxobj = new ActiveXObject("Msxml2.XMLHTTP"); 
	} catch (e) { 
	try { 
		_ajaxobj = new ActiveXObject("Microsoft.XMLHTTP"); 
	} catch (E) { 
		_ajaxobj = false; 
	} 
	} 
		
	if (!_ajaxobj && typeof XMLHttpRequest!='undefined') { 
		_ajaxobj = new XMLHttpRequest(); 
	} 
	 
	return _ajaxobj; 
}

function enviar_pwd(){
	
  //alert("Dins enviament");
  var url="http://www.kumex.es/validar.asp";
  var txt="";
  //vista_previa();
  
    //alert(document.formulari.nom.value);
    if (document.formul.usuari.value.length < 1) {
		alert("Necessary to indicate the user.");
		document.formul.usuari.focus();
		return (false);
	}
  
    //alert(document.formulari.assumpte.value);
    if (document.formul.pwd.value.length < 1) {
		alert("Necessary to indicate the password.");
		document.formul.pwd.focus();
		return (false);
		}
  
  
  txt="usuari="+escape(document.formul.usuari.value)+"&pwd="+escape(document.formul.pwd.value);
  peticion = ajaxobj();
  peticion.open("POST", url, true);
  peticion.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=ISO-8859-1');
  peticion.onreadystatechange = function () {
  if (peticion.readyState == 4) {
	  //alert(cadenaFormulario);
	  //document.formulari.contingut.value=peticion.responseText;
	  //alert("OK");
	  //document.formulari.contingut.value=txt;
     //document.getElementById('contingut').innerHTML = peticion.responseText;
	 window.location.reload();
	 alert(peticion.responseText);
}
}
  peticion.send(txt);
}