function irverifica()
{
document.accesos.accion.value = 2;
document.accesos.submit();
}

function ventapdf(url){
window.open(url,"logout_popup","toolbar=0,resizable=yes,location=0,directories=0,status=0,menubar=0,scrollbars=1,width=650,height=500");
}
 
function ventanita(url){
window.open(url,"logout_popup","toolbar=0,resizable=yes,location=0,directories=0,status=0,menubar=0,scrollbars=1,width=400,height=400");
}

function open_img(url){
window.open(url,"logout_popup","toolbar=0,resizable=no,location=0,directories=0,status=0,menubar=0,scrollbars=0,width=550,height=500");
}

function open_imgv(url){
window.open(url,"logout_popup","toolbar=0,resizable=yes,location=0,directories=0,status=0,menubar=0,scrollbars=1,width=600,height=100");
}