browserName=navigator.appName;
	browserVer=parseInt(navigator.appVersion);
	if(browserVer >=3)
	        version="3";
	else
	        version="2";
	
	if (version=="3") {
		a_on=new Image;
		a_on.src="./images/menu_a.jpg";
		a_off=new Image;
		a_off.src="./images/menu_off.jpg";
	
		b_on=new Image;
		b_on.src="./images/menu_b.jpg";
		b_off=new Image;
		b_off.src="./images/menu_off.jpg";
  
  	c_on=new Image;
		c_on.src="./images/menu_c.jpg";
		c_off=new Image;
		c_off.src="./images/menu_off.jpg";
		
	  d_on=new Image;
		d_on.src="./images/menu_d.jpg";
		d_off=new Image;
		d_off.src="./images/menu_off.jpg";
		
	  e_on=new Image;
		e_on.src="./images/menu_e.jpg";
		e_off=new Image;
		e_off.src="./images/menu_off.jpg";
		
	  f_on=new Image;
		f_on.src="./images/menu_f.jpg";
		f_off=new Image;
		f_off.src="./images/menu_off.jpg";
		
	  g_on=new Image;
		g_on.src="./images/menu_g.jpg";
		g_off=new Image;
		g_off.src="./images/menu_off.jpg";
		
	  h_on=new Image;
		h_on.src="./images/menu_h.jpg";
		h_off=new Image;
		h_off.src="./images/menu_off.jpg";
		
	  i_on=new Image;
		i_on.src="./images/menu_i.jpg";
		i_off=new Image;
		i_off.src="./images/menu_off.jpg";
		
	  j_on=new Image;
		j_on.src="./images/menu_j.jpg";
		j_off=new Image;
		j_off.src="./images/menu_off.jpg";
		
	  k_on=new Image;
		k_on.src="./images/menu_k.jpg";
		k_off=new Image;
		k_off.src="./images/menu_off.jpg";
		
	  l_on=new Image;
		l_on.src="./images/menu_l.jpg";
		l_off=new Image;
		l_off.src="./images/menu_off.jpg";
		
	  m_on=new Image;
		m_on.src="./images/menu_m.jpg";
		m_off=new Image;
		m_off.src="./images/menu_off.jpg";

	  n_on=new Image;
		n_on.src="./images/menu_n.jpg";
		n_off=new Image;
		n_off.src="./images/menu_off.jpg";

  }	
	function rollIn(imgName, picName) {
	        if (version=="3") {
	                document[imgName].src=eval(picName + "on.src");
	        }
	}
	
	function rollOut(imgName, picName) {
	        if (version=="3") {
	                document[imgName].src=eval(picName + "off.src");
	        }
	}