20110831

first problem:

description:

some content have been set into textarea, the textarea's content can be modified;

when submit(in fact,release one weibo message), i want to get the content of the textarea(if it has been modified,get the content after modify);

i use js;

first time: i use 

var tt = document.getElementById("t");
alert(tt.firstnode.nodevalue);

but it only show the old content(not contain the modify);

then someone helped me:

use this code:

alert(tt.value);

i got what i want!

to be continue...(today)