public void render(){
		glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		glEnable(GL_TEXTURE_2D);
		switch(page){
		case 0:
			renderMainPage();
			break;
		case 1:
			renderHowToPage();
			break;
		}
	}