function movepic(img_name,img_src,icon_name,action) 
{
    document[img_name].src=img_src;
   
   
    if (action=="hide") 
       {
            document[icon_name].style.display = "none";
       } 
       else 
       {
            document[icon_name].style.display = "block";
            
       }
}