// JavaScript Document
/**
*	String Buffer
*	var sb = new StringBuffer();
*	sb.append("Hello,world!");
*	sb.toString();
*/
function StringBuffer()
{
	this.__strings__ = new Array();
}
/**
*	添加String
*/
StringBuffer.prototype.append = function(str)
{
	this.__strings__.push(str);
}
/**
*	转换String
*/
StringBuffer.prototype.toString = function()
{
	return this.__strings__.join("");
}