function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		
		preloadFlag = true;
	}
}



if (document.layers){
      //Netscape 4 specific code
      pre = 'document.';
      post = '';
      post2 = '';
      var IEoffsets = 0;
   }
   if (document.getElementById){
      //Netscape 6 specific code
      pre = 'document.getElementById("';
      post = '").style';
      post2 = '")';
      var IEoffsets = 2;
   }
   if (document.all){
      //IE4+ specific code
      pre = 'document.all.';
      post = '.style';
      post2 = '';
      var IEoffsets = 5;
   }



   
   		function showLayer(lyr){
			eval(pre + lyr + post).display = 'block';
		}
		function hideLayer(lyr){
			eval(pre + lyr + post).display = 'none';
		}