function toggle(cid) { 
        var scr = document.getElementById(cid); 
        if (scr.className == 'scrolling') { 
          scr.className = 'notscrolling'; 
          document.getElementById(cid+'but').src="images/read_more1.gif";
        } else { 
          scr.className = 'scrolling'; 
          document.getElementById(cid+'but').src="images/read_more.gif";
        } 
      }