function HideRolloverImage() {
	if (document.originalImages != null)
	for(var i=0;i < (document.originalImages.length-1);i+=2)
		document.originalImages[i].src = document.originalImages[i+1];
}

function ShowRolloverImage() {
	var i,j=0,objStr,obj,imgList=new Array,oldList=document.originalImages;
		for (i=0;i < (ShowRolloverImage.arguments.length-2);i+=3) {
			objStr = ShowRolloverImage.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) {
					imgList[j++] = obj;
					imgList[j++] = (oldList==null || oldList[j-1]!=obj)?obj.src:oldList[j];
					obj.src = ShowRolloverImage.arguments[i+2];
				}
		}
		document.originalImages = imgList;
}

function PreloadImages() {
	if (document.images){
		var imgFiles = PreloadImages.arguments;
		if (document.preloadArray==null) document.preloadArray = new Array();
			var i = document.preloadArray.length;
			with (document) for (var j=0;j < imgFiles.length;j++)
			if (imgFiles[j].charAt(0) != "#"){
				preloadArray[i] = new Image;
				preloadArray[i++].src = imgFiles[j];
			}
		}
}