function okno500(url) 
{ window.open(url,'Login','left=50,top=50,status=no,scrollbars=no,width=510,height=510');}

function okno455(url) 
{ window.open(url,'Login','left=50,top=50,status=no,scrollbars=no,width=455,height=500');}

function okno403(url) 
{ window.open(url,'Login','left=50,top=50,status=no,scrollbars=no,width=500,height=403');}