/////////////////////////////////////////////////////////
//
// Nav Menu Image Rollovers
//
// pre-cache link and rollover images...
var imgsLo = new Object();      // resting buttons
var imgsHi = new Object();      // mouse over button
var nBtnWid = 160;
var nBtnHgt = 35;

if (document.images)
  {
  imgsLo["nav1"] = new Image(nBtnWid, nBtnHgt);   // nav images - normal
  imgsLo["nav1"].src = "imgs/button1_1.png";
  imgsLo["nav2"] = new Image(nBtnWid, nBtnHgt);
  imgsLo["nav2"].src = "imgs/button2_1.png";
  imgsLo["nav3"] = new Image(nBtnWid, nBtnHgt);
  imgsLo["nav3"].src = "imgs/button3_1.png";
  imgsLo["nav4"] = new Image(nBtnWid, nBtnHgt);
  imgsLo["nav4"].src = "imgs/button4_1.png";

  imgsHi["nav1"] = new Image(nBtnWid, nBtnHgt);   // nav images - highlight
  imgsHi["nav1"].src = "imgs/button1_2.png";
  imgsHi["nav2"] = new Image(nBtnWid, nBtnHgt);
  imgsHi["nav2"].src = "imgs/button2_2.png";
  imgsHi["nav3"] = new Image(nBtnWid, nBtnHgt);
  imgsHi["nav3"].src = "imgs/button3_2.png";
  imgsHi["nav4"] = new Image(nBtnWid, nBtnHgt);
  imgsHi["nav4"].src = "imgs/button4_2.png";
  }

function setImage(name, state)
  {
  //DBG alert("setImage("+name+", "+state+")");
  if (document.images)
    {
    if (state == 'hi')
      {
      document.images[name].src = imgsHi[name].src;
      return true;
      }
    else if (state == 'lo')
      {
      document.images[name].src = imgsLo[name].src;
      return true;
      }
    }
  return false;
  }
//
///// End of File ///////////////////////////////////////