// PRELOADING IMAGES
if (document.images) {
 imgHome_on =new Image();  imgHome_on.src ="Home2.jpg"; 
 imgHome_off=new Image();  imgHome_off.src="Home.jpg"; 
 imgContactUs_on =new Image();  imgContactUs_on.src ="ContactUs2.jpg"; 
 imgContactUs_off=new Image();  imgContactUs_off.src="ContactUs.jpg"; 
 imgTellAFriend_on =new Image();  imgTellAFriend_on.src ="TellAFriend2.jpg"; 
 imgTellAFriend_off=new Image();  imgTellAFriend_off.src="TellAFriend.jpg"; 
}

function handleOver(sButton) { 
 if (document.images) {
	switch (sButton){
	case "Home": 
		document.imgHome.src=imgHome_on.src;	
	break;
	case "ContactUs": 
		document.imgContactUs.src=imgContactUs_on.src;	
	break;
	case "TellAFriend": 
		document.imgTellAFriend.src=imgTellAFriend_on.src;	
	break;
	default : return;	

	}
 }
}

function handleOut(sButton) {
 if (document.images){
	
	switch (sButton){
	case "Home": 
		document.imgHome.src=imgHome_off.src;	
	break;
	case "ContactUs": 
		document.imgContactUs.src=imgContactUs_off.src;	
	break;
	case "TellAFriend": 
		document.imgTellAFriend.src=imgTellAFriend_off.src;	
	break;
	default : return;	

	}
 }
}