switch (Math.floor(Math.random() * 7)) {    
        case 0:
            document.images["2010newproducts"].src="topimg/2010newproducts/img1.jpg";
            break;
        case 1:
            document.images["2010newproducts"].src="topimg/2010newproducts/img2.jpg";
            break;
        case 2:
            document.images["2010newproducts"].src="topimg/2010newproducts/img3.jpg";
            break;
        case 3:
            document.images["2010newproducts"].src="topimg/2010newproducts/img4.jpg";
            break;
        case 4:
            document.images["2010newproducts"].src="topimg/2010newproducts/img5.jpg";
            break;
				case 5:
            document.images["2010newproducts"].src="topimg/2010newproducts/img6.jpg";
            break;
				case 6:
            document.images["2010newproducts"].src="topimg/2010newproducts/img7.jpg";
            break;
				case 7:
            document.images["2010newproducts"].src="topimg/2010newproducts/img8.jpg";
            break;
    }