public function setBody($body, $content_type = false){
	
		// clear old body data
		$this->post->clear();
		$this->files->clear();
		
		// is this form data?
		if(is_array($body)){
			$body = http_build_query($body);
		}
		
		$this->body = (string)$body;
		
		// plain text should be: text/plain; charset=UTF-8
		if($content_type){
			$this->headers->set('content-type', $content_type);
		}
		
		// do it!
		$this->prepare();
	}