//■Twitter
function postTw(txt){
var url = 'http://twitter.com/home?status=' + encodeURIComponent(txt);
window.open(url, "_blank");
}

//■Facebook
function postFb(url,txt){
var url = 'http://www.facebook.com/sharer.php?u=' + encodeURIComponent(url) + '&t=' + encodeURIComponent(txt);
window.open(url, "_blank");
}

//■はてなブックマーク
function postHb(url){
var url = 'http://b.hatena.ne.jp/append?' + encodeURIComponent(url);
window.open(url, "_blank");
}

//■del.icio.us
function postDl(url,txt){
var url = 'http://del.icio.us/post?url=' + encodeURIComponent(url) + '&title=' + encodeURIComponent(txt);
window.open(url, "_blank");
}

//■MySpace
function postMs(url,txt){
var url = 'http://www.myspace.com/Modules/PostTo/Pages/?u=' + encodeURIComponent(url) + '&t=' + encodeURIComponent(txt);
window.open(url, "_blank");
}

//■アメーバなう
function postAn(txt){
var url = 'http://now.ameba.jp/?entryText=' + encodeURIComponent(txt);
window.open(url, "_blank");
}