if (document.images) {            
            img1on = new Image();      
            img1on.src = "imgs/nav1_homeDown.jpg"; 
            img2on = new Image(); 
            img2on.src = "imgs/nav2_aboutDown.jpg";
            img3on = new Image();      
            img3on.src = "imgs/nav3_donateDown.jpg"; 
            img4on = new Image(); 
            img4on.src = "imgs/nav4_programsDown.jpg";
            img5on = new Image(); 
            img5on.src = "imgs/nav5_grantsDown.jpg";
			img6on = new Image();      
            img6on.src = "imgs/nav6_partnersDown.jpg"; 
            img7on = new Image(); 
            img7on.src = "imgs/nav7_newsDown.jpg";
            img8on = new Image(); 
            img8on.src = "imgs/nav8_contactDown.jpg";

         
            img1off = new Image(); 
            img1off.src = "imgs/nav1_home.jpg"; 
            img2off = new Image();          
            img2off.src = "imgs/nav2_about.jpg";
            img3off = new Image(); 
            img3off.src = "imgs/nav3_donate.jpg"; 
            img4off = new Image();          
            img4off.src = "imgs/nav4_programs.jpg";
            img5off = new Image();          
            img5off.src = "imgs/nav5_grants.jpg";
            img6off = new Image(); 
            img6off.src = "imgs/nav6_partners.jpg"; 
            img7off = new Image();          
            img7off.src = "imgs/nav7_news.jpg";
            img8off = new Image();          
            img8off.src = "imgs/nav8_contact.jpg";			
		
        }

	function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
            return true;
        }
	}

	function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
            return true;
        }
	}