function Data_Form_Validator(FormData)
{
if (FormData.user.value == "")
{alert("Inserire lo USER in vostro possesso!");FormData.user.focus();return (false);}

if (FormData.password.value == "")
{alert("Inserire la PASSWORD in vostro possesso!");FormData.password.focus();return (false);}
}
function zoom(link, wName, w, h, scroll){
var clientHt = window.screen.height;
var clientWt = window.screen.width;
newWin = window.open(link, wName, 'scrollbars='+scroll+', resizable=no, width='+w+', height='+h+', location=no, toolbar=no, menubar=no');
newWin.moveTo( (clientWt/2)-(w/2) , (clientHt/2)-(h/2) );
newWin.resizeTo(w,h);
}