m1on = new Image;  m1on.src = "image/sino/yellow/sino_home.gif";
   m3on = new Image;  m3on.src = "image/sino/yellow/sino_investors_relations.gif";
   m4on = new Image;  m4on.src = "image/sino/yellow/caxiun.gif";
   m5on = new Image;  m5on.src = "image/sino/yellow/sino_news_and_announcement.gif";
   m6on = new Image;  m6on.src = "image/sino/yellow/corporate_governance.gif";
   m7on = new Image; m7on.src = "image/sino/yellow/sino_contact_us.gif";
 
   m8on = new Image;  m8on.src = "image/sino/yellow/sino_legal.gif";

   m1off = new Image;  m1off.src = "image/sino/white/sino_home.gif";
   m3off = new Image;  m3off.src = "image/sino/white/sino_investors_relations.gif";
   m4off = new Image;  m4off.src = "image/sino/white/caxiun.gif";
   m5off = new Image;  m5off.src = "image/sino/white/sino_news_and_announcement.gif";
   m6off = new Image;  m6off.src = "image/sino/white/corporate_governance.gif";
   m7off = new Image; m7off.src = "image/sino/white/sino_contact_us.gif";

   m8off = new Image;  m8off.src = "image/sino/white/sino_legal.gif";

function img_act(imgName)

 {
    imgOn = eval(imgName + "on.src");
    document [imgName].src = imgOn;  
	
 }

function img_inact(imgName)

{        
   imgOff = eval(imgName + "off.src"); 
   document [imgName].src = imgOff;     
}