function printPage() { 
    if(document.all) { 
        document.all.botonimpresion.style.visibility = 'hidden'; 
        window.print(); 
        document.all.botonimpresion.style.visibility = 'visible'; 
    } else { 
        document.getElementById('botonimpresion').style.visibility = 'hidden'; 
        window.print(); 
        document.getElementById('botonimpresion').style.visibility = 'visible'; 
    } 
} 

function versionHTML(html)
{
 window.open(html,"servicio","height=500,width=900,left=300,menubar=no,scrollbars=yes");    
}


function mostrarEnvioCorreo(){
    visibilidad=document.getElementById("divEnviarCorreo").style.visibility;
    if(visibilidad=="hidden")
    {
        document.getElementById("divEnviarCorreo").style.visibility="visible";
    }else{
        document.getElementById("divEnviarCorreo").style.visibility="hidden";
    }   

}