/* ---- scripts --------------- modified 28 June 2010 ----------- */
// toggle nav bar 
 function tgl(obj,numbr)
  { var bCol=(numbr==1)?"#FF0" : "B0CCE2";
    var fCol=(numbr==1)?"#000" : "FFF";
    obj.style.backgroundColor=bCol;
    obj.style.color=fCol;
  }
// ---------------
// expand thumbnails
 function exp(obj)
  { var oldSrc=obj.src;
    var newSrc=oldSrc.replace("_sml","_lg");
    var build='<img src="'+newSrc+'" onload="setTimeout(\'endLoad()\',500)" width="'+B[obj.name].w+'" height="'+B[obj.name].h+'">';
    var elem=document.getElementById("picL2");
    elem.innerHTML=build;
  // turn on loader display 
    elem=document.getElementById("ldr");
    elem.style.visibility="visible";
    return true;
  }
// ----------
// clear loading display
 function endLoad()
  { var elem=document.getElementById("ldr");
    elem.style.visibility="hidden";
  }
// ------------
// toggles graf image
 function bin(obj,numb)
  { var prt=(numb=="_1")?"_2" : "_1";
    var newSrc=obj.src.replace(numb,prt);
    obj.src=newSrc;
  }
// ----------