function twit_this(){
var my_title = $("#twit_title").text();
if (my_title.length > 30) {
my_title = my_title.substring(0, 30) + "...";
}
var my_url = window.location + "";
var my_hashtag = '#loan' + my_url.slice(-4);
var twit_url ='http://twitter.com/home?status='+encodeURIComponent('【maneo】 ' + my_title + ' ' + my_url + ' '+ my_hashtag);
window.open(twit_url,'twitter');
}