function preloadImages() { 
	  	if (document.images) {
	    		var imgFiles = preloadImages.arguments;
	    		var preloadArray = new Array();
	    		for (var i=0; i<imgFiles.length; i++) {
	      		preloadArray[i] = new Image;
	      		preloadArray[i].src = imgFiles[i];
	    		}
	  	}
	}

	function swapImage() {
		var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.swapImgData;
		for (i=0; i < (swapImage.arguments.length-2); i+=3) {
		    	objStr = swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1];
		    	if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||
		        	(objStr.indexOf('document.all[')   ==0 && document.all   ==null))
		      	objStr = 'document'+objStr.substring(objStr.lastIndexOf('.'),objStr.length);
		    		obj = eval(objStr);
		    	if (obj != null) {
		      	swapArray[j++] = obj;
		      	swapArray[j++] = (oldArray==null || oldArray[j-1]!=obj)?obj.src:oldArray[j];
		      	obj.src = swapImage.arguments[i+2];
			} 
		}
		document.swapImgData = swapArray;
		}
	function swapImgRestore() {
	  	if (document.swapImgData != null)
	    	for (var i=0; i<(document.swapImgData.length-1); i+=2)
	      	document.swapImgData[i].src = document.swapImgData[i+1];
	}
	//-->
	function ImgSwap2(imgName, imgSrc)
	{
	  var appVer=parseInt(navigator.appVersion);
	  var isNC=(document.layers && (appVer >= 4)); // Netscape Navigator 4.0 or later
	  var isIE=(document.all    && (appVer >= 4)); // Internet Explorer  4.0 or later
	  if (isNC || isIE)
	  {
	    if (document.images)
	    {
	      var img = document.images[imgName];
	      if (!img) img = HpbImgFind(document, imgName);
	      if (img) img.src = imgSrc;
	    }
	  }
	}