if (document.images)
{
img1Off=new Image();
img1Off.src="ca.jpg";
img1On=new Image();
img1On.src="ca_over.jpg"; 

img2Off=new Image();
img2Off.src="sea.jpg";
img2On=new Image();
img2On.src="sea_over.jpg"; 

img3Off=new Image();
img3Off.src="cds.jpeg";
img3On=new Image();
img3On.src="cds_over.jpeg"; 

img5Off=new Image();
img5Off.src="vol.jpg";
img5On=new Image();
img5On.src="vol_over.jpg"; 

img6Off=new Image();
img6Off.src="main.jpeg";
img6On=new Image();
img6On.src="main_over.jpeg"; 

img7Off=new Image();
img7Off.src="books.jpeg";
img7On=new Image();
img7On.src="books_over.jpeg"; 

img8Off=new Image();
img8Off.src="gifts.jpeg";
img8On=new Image();
img8On.src="gifts_over.jpeg"; 	

img9Off=new Image();
img9Off.src="tickets.jpeg";
img9On=new Image();
img9On.src="tickets_over.jpeg"; 	

imgAOff=new Image();
imgAOff.src="art.jpg";
imgAOn=new Image;
imgAOn.src="art_over.jpg"; 	

imgBOff=new Image();
imgBOff.src="shp.jpg";
imgBOn=new Image();
imgBOn.src="shp_over.jpg"; 
    }
	
    function imgOn(imgName)
    {
	if (document.images)
	{
	    document.images[imgName].src = eval(imgName + "On.src");
	}
    }

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