// image button highlighting
		if (document.images) {

			// productions
	        var n_product_lo = new Image();
		    var n_product_hi = new Image();
			n_product_lo.src = "img/n_product_lo.gif";
        	n_product_hi.src = "img/n_product_hi.gif";

			// profile
	        var n_profile_lo = new Image();
		    var n_profile_hi = new Image();
			n_profile_lo.src = "img/n_profile_lo.gif";
        	n_profile_hi.src = "img/n_profile_hi.gif";

			// contact
	        var n_contact_lo = new Image();
		    var n_contact_hi = new Image();
			n_contact_lo.src = "img/n_contact_lo.gif";
        	n_contact_hi.src = "img/n_contact_hi.gif";

			// seed
	        var h_seed_lo = new Image();
		    var h_seed_hi = new Image();
			h_seed_lo.src = "img/h_seed_lo.gif";
        	h_seed_hi.src = "img/h_seed_hi.gif";

			// mao
	        var h_mao_lo = new Image();
		    var h_mao_hi = new Image();
			h_mao_lo.src = "img/h_mao_lo.gif";
        	h_mao_hi.src = "img/h_mao_hi.gif";

			// tibet
	        var h_tibet_lo = new Image();
		    var h_tibet_hi = new Image();
			h_tibet_lo.src = "img/h_tibet_lo.gif";
        	h_tibet_hi.src = "img/h_tibet_hi.gif";

			// muddy
	        var h_muddy_lo = new Image();
		    var h_muddy_hi = new Image();
			h_muddy_lo.src = "img/h_muddy_lo.gif";
        	h_muddy_hi.src = "img/h_muddy_hi.gif";

			// dolphin
	        var h_dolphin_lo = new Image();
		    var h_dolphin_hi = new Image();
			h_dolphin_lo.src = "img/h_dolphin_lo.gif";
        	h_dolphin_hi.src = "img/h_dolphin_hi.gif";

			// mum
	        var h_mum_lo = new Image();
		    var h_mum_hi = new Image();
			h_mum_lo.src = "img/h_mum_lo.gif";
        	h_mum_hi.src = "img/h_mum_hi.gif";

			// tenth
	        var h_tenth_lo = new Image();
		    var h_tenth_hi = new Image();
			h_tenth_lo.src = "img/h_tenth_lo.gif";
        	h_tenth_hi.src = "img/h_tenth_hi.gif";

			// paint
	        var h_paint_lo = new Image();
		    var h_paint_hi = new Image();
			h_paint_lo.src = "img/h_paint_lo.gif";
        	h_paint_hi.src = "img/h_paint_hi.gif";

			// isabella
	        var h_isabella_lo = new Image();
		    var h_isabella_hi = new Image();
			h_isabella_lo.src = "img/h_isabella_lo.gif";
        	h_isabella_hi.src = "img/h_isabella_hi.gif";

			// deaf
	        var h_deaf_lo = new Image();
		    var h_deaf_hi = new Image();
			h_deaf_lo.src = "img/h_deaf_lo.gif";
        	h_deaf_hi.src = "img/h_deaf_hi.gif";

			// eye
	        var h_eye_lo = new Image();
		    var h_eye_hi = new Image();
			h_eye_lo.src = "img/h_eye_lo.gif";
        	h_eye_hi.src = "img/h_eye_hi.gif";

			// penguin
	        var h_penguin_lo = new Image();
		    var h_penguin_hi = new Image();
			h_penguin_lo.src = "img/h_penguin_lo.gif";
        	h_penguin_hi.src = "img/h_penguin_hi.gif";

        }
        function LoLite(imgName) {			
            if (document.images) 
              document[imgName].src = eval(imgName + '_lo.src')
        }
        function HiLite(imgName) {
            if (document.images)
              document[imgName].src = eval(imgName + '_hi.src')
        }