/* -------------- graf script ------------------ modified 28 April 2008 -------- */
// graf button toggle
function bin(obj,num)
  { var pnt=(num==1)?"_2" :"_1";
    var newSrc=obj.src.replace("_"+num,pnt) 
    obj.src=newSrc;
  }
// -----------------------
// toggle nav bar 
 function chng(obj,num)
  { var hFg="#FF0", sFg="#FFF";        // s=static, h=hover
    var hBg="#540056", sBg="#000";       
    var pntFg=(num==1)?hFg : sFg;
    var pntBg=(num==1)?hBg : sBg;
    obj.style.color=pntFg;
    obj.style.backgroundColor=pntBg;
  }
// -----------------------