function lf_window(page){
    Popwin = window.open(page,'', 
    'left=0,top=0,width=790,height=495,scrollbars=yes,' + 
    'resizable=yes,status=no,menubar=no,toolbar=yes,' + 
    'location=0,directories=0,copyhistory=0');
}

function lf_window_clear(page){
    Popwin = window.open(page,'', 
    'left=0,top=0,width=790,height=540,scrollbars=yes,'+
    'resizable=yes,status=no,menubar=no,toolbar=no,'+
    'location=0,directories=0,copyhistory=0');
}

function lf_window_graphic(page){
    Popwin = window.open(page,'', 
    'left=0,top=0,width=790,height=540,scrollbars=no,'+
    'resizable=yes,status=no,menubar=no,toolbar=no,'+
    'location=0,directories=0,copyhistory=0');
}

function trocaSenha(){
    loginForm.action="alteraSenha.do";
    loginForm.submit();
}