function AbrirSesion()
{
    var FormTopLogonPanel=document.getElementById('FORMTOPLOGONPANEL'); 
    if (FormTopLogonPanel==null) return;

    var Usuario=FormTopLogonPanel.USUARIO.value;
    var Clave=FormTopLogonPanel.CLAVE.value;
    
    var ahora = new Date();

    var oXmlHttp = createXMLHttp();
    if (oXmlHttp==null) return;

    var url="./ajax/toplogonpanelabrirsesion.jsp?USUARIO=" + Usuario + "&CLAVE=" + Clave + "&TIMEID=" + ahora.getTime();
    oXmlHttp.open("get",url,true);
    oXmlHttp.onreadystatechange = function () {
        if (oXmlHttp.readyState == 4 ) {
           window.location.reload();          
        }
    }
    oXmlHttp.send(null);

}
//-----------------------------------------------------------------------------
function CerrarSesion()
{
    var oXmlHttp = createXMLHttp();
    if (oXmlHttp==null) return;
    
    var ahora = new Date();    
    
    var url="./ajax/toplogonpanelcerrarsesion.jsp?TIMEID=" + ahora.getTime();
    oXmlHttp.open("get",url,true);
    oXmlHttp.onreadystatechange = function () {
        if (oXmlHttp.readyState == 4 ) {
           window.location.reload();           
        }
    }
    oXmlHttp.send(null);

}
//-----------------------------------------------------------------------------