$.getJSON("http://twitter.com/statuses/user_timeline.json?screen_name=tramlines&count=1&callback=?",
function(data){
$.each(data, function(i,item){
ct = item.text;
ct = ct.replace(/http:\/\/\S+/g,  '<a href="$&" target="_blank">$&</a>');
ct = ct.replace(/\s(@)(\w+)/g,    ' @<a href="http://twitter.com/$2" target="_blank">$2</a>');
ct = ct.replace(/\s(#)(\w+)/g,    ' #<a href="http://search.twitter.com/search?q=%23$2" target="_blank">$2</a>');
$("#jstweets").append('<p>'+ct +"</p>");
});
});