var strImagePath = 'img/layout/';
		nav01 = newImage("nav_about.gif");
		nav01Over = newImage("nav_about_over.gif");
		nav02 = newImage("nav_catalog.gif");
		nav02Over = newImage("nav_catalog_over.gif");
		nav03 = newImage("nav_contact.gif");
		nav03Over = newImage("nav_contact_over.gif");
		nav04 = newImage("nav_sale.gif");
		nav04Over = newImage("nav_sale_over.gif");

		function newImage(strFilename) {
			strFilename = strImagePath + strFilename;
			if (document.images) {
				objTempImage = new Image();
				objTempImage.src = strFilename;
				return objTempImage;
			}
		}

		function changeImage(strLocation, strImage) {
			document.getElementById(strLocation).src = eval(strImage + ".src");
		}

		var newWin = null;

		function showLargePic(URL)
		{
			launchNewWin(URL, 'large', 660, 500)
		}

		function launchNewWin(URL, windowName, windowWidth, windowHeight, scrollbars)
		{
			var xposition = 400; 
			var yposition = 300;
			
			if ((parseInt(navigator.appVersion) >= 4 )) {
				xposition = (screen.width - windowWidth) / 2;
				yposition = (screen.height - windowHeight) / 2;
			}
			
			if (!scrollbars) var scrollbars = 0;
			
			var args = "width=" + windowWidth + ","
					+ "height=" + windowHeight + ","
					+ "location=0,"
					+ "menubar=0,"
					+ "scrollbars=" + scrollbars + ","
					+ "status=0,"
					+ "titlebar=0,"
					+ "hotkeys=0,"
					+ "screenx=" + xposition + ","  // NN Only
					+ "screeny=" + yposition + ","  // NN Only
					+ "left=" + xposition + ","     // IE Only
					+ "top=" + yposition;           // IE Only
				
			if (newWin != null && !newWin.closed) {
				newWin.close();
			}
			newWin = window.open(URL, windowName, args);
			
			newWin.focus();
		}