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            img_ho_off.src = "images/home1.jpg"; 
            img_ho_on = new Image();      
            img_ho_on.src = "images/home2.jpg";
            img_ab_off = new Image(); 
            img_ab_off.src = "images/about1.jpg"; 
            img_ab_on = new Image();      
            img_ab_on.src = "images/about2.jpg";
            img_ne_off = new Image(); 
            img_ne_off.src = "images/new1.jpg"; 
            img_ne_on = new Image();      
            img_ne_on.src = "images/new2.jpg";
            img_bo_off = new Image(); 
            img_bo_off.src = "images/books1.jpg"; 
            img_bo_on = new Image();      
            img_bo_on.src = "images/books2.jpg";
            img_co_off = new Image(); 
            img_co_off.src = "images/columns1.jpg"; 
            img_co_on = new Image();      
            img_co_on.src = "images/columns2.jpg";
            img_ar_off = new Image(); 
            img_ar_off.src = "images/archives1.jpg"; 
            img_ar_on = new Image();      
            img_ar_on.src = "images/archives2.jpg";
            img_sm_off = new Image(); 
            img_sm_off.src = "images/seminars1.jpg"; 
            img_sm_on = new Image();      
            img_sm_on.src = "images/seminars2.jpg";
            img_se_off = new Image(); 
            img_se_off.src = "images/search1.jpg"; 
            img_se_on = new Image();      
            img_se_on.src = "images/search2.jpg";
            img_ct_off = new Image(); 
            img_ct_off.src = "images/contact1.jpg"; 
            img_ct_on = new Image();      
            img_ct_on.src = "images/contact2.jpg";
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// Function to 'activate' images.
function imgOn(imgName) {
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}
         
// Function to 'deactivate' images.        
function imgOff(imgName) {
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}
// -->