Ciao

var shift = false;

document.onkeyup = function(e)
{
if(e.which == 16)
{
shift=false;
}
}

document.onkeydown=function(e)
{
if(e.which == 16)
{
shift=true;
}

if(e.which == 35 && shift)
{
alert('ciao');
}

}