function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
            document["common"].src = "pix/fruit.jpg";
        }
}



      
if (document.images) {

            img01on = new Image();
            img01on.src = "pix/fruitshake_on.gif";
            img02on = new Image();
            img02on.src = "pix/royal_on.gif";
            img03on = new Image();
            img03on.src = "pix/smoothie_on.gif";
            img04on = new Image();
            img04on.src = "pix/bananna_on.gif";
            img05on = new Image();
            img05on.src = "pix/granola_on.gif";
            img06on = new Image();
            img06on.src = "pix/sandwich_on.gif";
                                
           
            img01off = new Image(); 
            img01off.src = "pix/fruitshake_off.gif"; 
            img02off = new Image(); 
            img02off.src = "pix/royal_off.gif"; 
            img03off = new Image(); 
            img03off.src = "pix/smoothie_off.gif";
            img04off = new Image();
            img04off.src = "pix/bananna_off.gif";  
            img05off = new Image();
            img05off.src = "pix/granola_off.gif";
            img06off = new Image();
            img06off.src = "pix/sandwich_off.gif";
                                     

            img01ad = new Image();
            img01ad.src = "pix/fruitshake.jpg";
            img02ad = new Image();
            img02ad.src = "pix/royal.jpg";
            img03ad = new Image();
            img03ad.src = "pix/smoothie.jpg";
            img04ad = new Image();
            img04ad.src = "pix/bananna.jpg";
            img05ad = new Image();
            img05ad.src = "pix/granola.jpg";
            img06ad = new Image();
            img06ad.src = "pix/sandwich.jpg";
           
            

         }


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