	<!--
	      if (document.images)
		  {
				 img1on = new Image();    img1on.src = "images/nav_about_on.gif";
				 img1off = new Image();   img1off.src = "images/nav_about_off.gif";

				 img2on = new Image();    img2on.src = "images/nav_prevent_on.gif";
				 img2off = new Image();   img2off.src = "images/nav_prevent_off.gif";

				 img3on = new Image();    img3on.src = "images/nav_asthmaap_on.gif";
				 img3off = new Image();   img3off.src = "images/nav_asthmaap_off.gif";

				 img4on = new Image();    img4on.src = "images/nav_asthmahot_on.gif";
				 img4off = new Image();   img4off.src = "images/nav_asthmahot_off.gif";

				 img5on = new Image();    img5on.src = "images/nav_forkids_on.gif";
				 img5off = new Image();   img5off.src = "images/nav_forkids_off.gif";

				 img6on = new Image();    img6on.src = "images/nav_home_on.gif";
				 img6off = new Image();   img6off.src = "images/nav_home_off.gif";

				 img7on = new Image();    img7on.src = "images/subnav_trigg_on.gif";
				 img7off = new Image();   img7off.src = "images/subnav_trigg_off.gif";				 
				 
				 img10on = new Image();    img10on.src = "images/subnav_school_on.gif";
				 img10off = new Image();   img10off.src = "images/subnav_school_off.gif";

				 img8on = new Image();    img8on.src = "images/subnav_out_on.gif";
				 img8off = new Image();   img8off.src = "images/subnav_out_off.gif";

				 img9on = new Image();    img9on.src = "images/nav_psa_on.gif";
				 img9off = new Image();   img9off.src = "images/nav_psa_off.gif";
				 
		}
	
	    function imgOn(imgName) {
	            if (document.images) {
	                document[imgName].src = eval(imgName + "on.src");
	            }
	    }
	
	    function imgOff(imgName) {
	            if (document.images) {
	                document[imgName].src = eval(imgName + "off.src");
	            }
	    }
	
	 -->