if (document.images) {
    	 home1 = new Image(133, 29)
	 home2 = new Image(133, 29)
	 dentists1 = new Image(133, 29)
	 dentists2 = new Image(133, 29)
	 services1 = new Image(133, 29)
	 services2 = new Image(133, 29)
         smilegallery1 = new Image(133, 29)
         smilegallery2 = new Image(133, 29)
	 contact1 = new Image(133, 29)
	 contact2 = new Image(133, 29)
	 
	 home1.src = "images/mhome1.gif"
	 home2.src = "images/mhome2.gif"
	 dentists1.src = "images/mdentists1.gif"
	 dentists2.src = "images/mdentists2.gif"
	 services1.src = "images/mservices1.gif"
	 services2.src = "images/mservices2.gif"
         smilegallery1.src = "images/msmilegallery1.gif"
         smilegallery2.src = "images/msmilegallery2.gif"
	 contact1.src = "images/mcontact1.gif"
	 contact2.src = "images/mcontact2.gif"
	 }
	 else {
	 home1 = ""
	 home2 = ""
	 document.home = ""
	 dentists1 = ""
	 dentists2 = ""
	 document.dentists = ""
	 services1 = ""
	 services2 = ""
	 document.services = ""
         smilegallery1 = ""
         smilegallery2 = ""
         document.smilegallery = ""
	 contact1 = ""
	 contact2 = ""
	 document.contact = ""
	 }