if (document.images) {       
img1on = new Image();           
img1on.src = "images/home_on.gif"; 
img2on = new Image();
img2on.src = "images/services_on.gif";  
img3on = new Image();
img3on.src = "images/portfolio_on.gif";
img4on = new Image();
img4on.src = "images/freequote_on.gif";
img5on = new Image();
img5on.src = "images/link_on.gif";  
img6on = new Image();
img6on.src = "images/about_on.gif";  
img7on = new Image();
img7on.src = "images/contact_on.gif";  
img8on = new Image();
img8on.src = "images/view_website_button1_on.gif";  
img9on = new Image();
img9on.src = "images/applybutton_on.gif";  
img10on = new Image();
img10on.src = "images/howbutton_on.gif";  
img11on = new Image();
img11on.src = "images/view_website_button1_on.gif";  
img12on = new Image();
img12on.src = "images/view_website_button_on.gif";  
img13on = new Image();
img13on.src = "images/freequote_button_on.gif";  
img14on = new Image();
img14on.src = "images/sign_guest_button_on.gif";  

img1off = new Image();           
img1off.src = "images/home.gif"; 
img2off = new Image();
img2off.src = "images/services.gif";  
img3off = new Image();
img3off.src = "images/portfolio.gif";
img4off = new Image();
img4off.src = "images/freequote.gif";
img5off = new Image();
img5off.src = "images/link.gif";  
img6off = new Image();
img6off.src = "images/about.gif";  
img7off = new Image();
img7off.src = "images/contact.gif";  
img8ff = new Image();
img8ff.src = "images/view_website_button1.gif"; 
img9off = new Image();
img9off.src = "images/applybutton.gif";  
img10off = new Image();
img10off.src = "images/howbutton.gif";  
img11off = new Image();
img11off.src = "images/view_website_button1.gif";  
img12off = new Image();
img12off.src = "images/view_website_button.gif";  
img13off = new Image();
img13off.src = "images/freequote_button.gif";  
img14off = new Image();
img14off.src = "images/sign_guest_button_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");        }}
}