function strbuilder(value)
{
	this.strings = new Array("");
	this.append(value);
}
strbuilder.prototype.append = function (value)
{
	if (value)
	{
		this.strings.push(value);
	}
}
strbuilder.prototype.clear = function ()
{
	this.strings.length = 1;
}
strbuilder.prototype.toString = function ()
{
	return this.strings.join("");
}
strbuilder.prototype.length = function()
{
    return this.strings.length;
}