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
	 
     button19 = new Image
     button20 = new Image
	 
     button21 = new Image
     button22 = new Image
	 
     button23 = new Image
     button24 = new Image
	 
     button25 = new Image
     button26 = new Image
	 
     button27 = new Image
     button28 = new Image
	 
     button29 = new Image
     button30 = new Image
	 
     button31 = new Image
     button32 = new Image
	 
     button33 = new Image
     button34 = 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/contact.jpg'
     button6.src = 'images/contact-hvr.jpg'
	 
     button7.src = 'images/team.jpg'
     button8.src = 'images/team-hvr.jpg'
	 
     button9.src = 'images/services.jpg'
     button10.src = 'images/services-hvr.jpg'
	 
     button11.src = 'images/appoinments.jpg'
     button12.src = 'images/appoinments-hvr.jpg'
	 
     button13.src = 'images/form.jpg'
     button14.src = 'images/form-hvr.jpg'
	 
     button15.src = 'images/library.jpg'
     button16.src = 'images/library-hvr.jpg'
	 
     button17.src = 'images/contact1.jpg'
     button18.src = 'images/contact1-hvr.jpg'
	 
     button19.src = 'images/zoom.jpg'
     button20.src = 'images/zoom-hvr.jpg'
	 
     button21.src = 'images/contour.jpg'
     button22.src = 'images/contour-hvr.jpg'
	 
     button23.src = 'images/ceramics.jpg'
     button24.src = 'images/ceramics-hvr.jpg'
	 
     button25.src = 'images/treatment.jpg'
     button26.src = 'images/treatment-hvr.jpg'
	 
     button27.src = 'images/dental.jpg'
     button28.src = 'images/dental-hvr.jpg'
	 
     button29.src = 'images/book1.jpg'
     button30.src = 'images/book1-hvr.jpg'
	 
     button31.src = 'images/read.jpg'
     button32.src = 'images/read-hvr.jpg'
	 
     button33.src = 'images/touch.jpg'
     button34.src = 'images/touch-hvr.jpg'
 }