if (document.images)
  {
  // browser supports Image object, so preload all images
  logo			   = new Image()
  logo.src		   = "images/logo.jpg"
  weave			   = new Image()
  weave.src		   = "images/wordweave.gif"
  navback		   = new Image()
  navback.src	   = "images/tapestry.gif"
  homerod		   = new Image()
  homerod.src	   = "images/home-rod.gif"
  homeback		   = new Image()
  homeback.src 	   = "images/wall.gif"
  pageback		   = new Image()
  pageback.src 	   = "images/background.gif"
  siderod	       = new Image()
  siderod.src      = "images/rod.gif"
  er			   = new Image()
  er.src		   = "images/er.jpg"
  adt_out          = new Image()
  adt_out.src      = "images/adtsite-thumb-out.jpg"
  adt_over	       = new Image()
  adt_over.src     = "images/adtsite-thumb-over.jpg"
  dhs_out          = new Image()
  dhs_out.src      = "images/dhssite-thumb-out.jpg"
  dhs_over	       = new Image()
  dhs_over.src     = "images/dhssite-thumb-over.jpg"  
  fl_out           = new Image()
  fl_out.src       = "images/flsite-thumb-out.jpg"
  fl_over		   = new Image()
  fl_over.src      = "images/flsite-thumb-over.jpg"
  joy_out          = new Image()
  joy_out.src      = "images/joysite-thumb-out.jpg"
  joy_over	       = new Image()
  joy_over.src     = "images/joysite-thumb-over.jpg"
  ph_out           = new Image()
  ph_out.src       = "images/phsite-thumb-out.jpg"
  ph_over		   = new Image()
  ph_over.src      = "images/phsite-thumb-over.jpg"
  }
else
  {
  // browser does NOT support Image object, so set all image vals to ""
  // to prevent errors from arising in onMouseOver/onMouseOut handlers
  logo = ""; navback = ""; pageback = "";
  siderod = ""; er = "";
  adt_out = ""; adt_over = ""; 
  dhs_out = ""; dhs_over = "";
  joy_out = ""; joy_over = "";
  fl_out = ""; fl_over = ""; 
  ph_out = ""; ph_over = "";
  document.adt = "";
  document.dhs = "";
  document.joy = "";
  document.fl = "";
  document.ph = "";
  }


var sPath = window.location.pathname;
var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);

function styleMenu() {
	  switch(sPage) {
	      case "about.html" :
            document.getElementById('navabout').className='thispage';
			break
		  case "contact.html" :
            document.getElementById('navcontact').className='thispage';
			break
		  case "portfolio.html" :
            document.getElementById('navportfolio').className='thispage';
			break
		  default :
		} // end switch
}  // end styleMenu function