$("#clear").click(function(){ //очистка
newprice = 0;
newcount = 0;
id = 0;
window.localStorage[keyprice] = newprice;
window.localStorage[keyid] = id;
window.localStorage[keycount] = newcount;
$('#cart span#price').html(newprice+' руб. ').attr("price",newprice);
$('#cart span.count').html(newcount);
})