if (document.images) {
   
     button1 = new Image
     button2 = new Image
	 
     button3 = new Image
     button4 = new Image
	 
     button5 = new Image
     button6 = new Image
	 
     button7 = new Image
     button8 = new Image
	 
     button9 = new Image
     button10 = new Image	 

     button11 = new Image
     button12 = new Image	 


	 	 
     button1.src = 'images/home.jpg'
     button2.src = 'images/home-hvr.jpg'
	 
	 button3.src = 'images/about.jpg'
     button4.src = 'images/about-hvr.jpg'
	 
     button5.src = 'images/product.jpg'
     button6.src = 'images/product-hvr.jpg'
	 
     button7.src = 'images/how-to-buy.jpg'
     button8.src = 'images/how-to-buy-hvr.jpg'
	 
     button9.src = 'images/returns.jpg'
     button10.src = 'images/returns-hvr.jpg'
	 
	 button11.src = 'images/special-offer.jpg'
     button12.src = 'images/special-offer-hvr.jpg'

	 
}