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	 

	 button13 = new Image
     button14 = new Image	 

	 button15 = new Image
     button16 = new Image	 

	 button17 = new Image
     button18 = new Image	 

	 	 

     button1.src = 'images/home.jpg'
     button2.src = 'images/home-hvr.jpg'	 

	 button3.src = 'images/whorses.jpg'
     button4.src = 'images/whorses-hvr.jpg'	 

	 button5.src = 'images/about.jpg'
     button6.src = 'images/about-hvr.jpg'	 

	 button7.src = 'images/workshop.jpg'
     button8.src = 'images/workshop-hvr.jpg'	 

	 button9.src = 'images/news.jpg'
     button10.src = 'images/news-hvr.jpg'	 

	 button11.src = 'images/books.jpg'
     button12.src = 'images/books-hvr.jpg'	 

	 button13.src = 'images/oaks.jpg'
     button14.src = 'images/oaks-hvr.jpg'	 

	 button15.src = 'images/contact.jpg'
     button16.src = 'images/contact-hvr.jpg'	 

	 button17.src = 'images/location.jpg'
     button18.src = 'images/location-hvr.jpg'
}