var ready = false; 
var imageDB = new Array();
var imagepath = "/images/";
{
		imageDB['btnProfile']=new Array();
		imageDB['btnProfile']['off'] = new Image(); 	
		imageDB['btnProfile']['off'].src=imagepath +  "btnProfile.jpg";
	   	imageDB['btnProfile']['on'] = new Image(); 		
		imageDB['btnProfile']['on'].src=imagepath + "btnProfile_over.jpg"

		imageDB['btnMusic']=new Array();
		imageDB['btnMusic']['off'] = new Image(); 	
		imageDB['btnMusic']['off'].src=imagepath +  "btnMusic.jpg";
	   	imageDB['btnMusic']['on'] = new Image(); 		
		imageDB['btnMusic']['on'].src=imagepath + "btnMusic_over.jpg"
		
		imageDB['btnVideo']=new Array();
		imageDB['btnVideo']['off'] = new Image(); 	
		imageDB['btnVideo']['off'].src=imagepath +  "btnVideo.jpg";
	   	imageDB['btnVideo']['on'] = new Image(); 		
		imageDB['btnVideo']['on'].src=imagepath + "btnVideo_over.jpg"
		
		imageDB['btnText']=new Array();
		imageDB['btnText']['off'] = new Image(); 	
		imageDB['btnText']['off'].src=imagepath +  "btnText.jpg";
	   	imageDB['btnText']['on'] = new Image(); 		
		imageDB['btnText']['on'].src=imagepath + "btnText_over.jpg"

		imageDB['btnGuestbook']=new Array();
		imageDB['btnGuestbook']['off'] = new Image(); 	
		imageDB['btnGuestbook']['off'].src=imagepath +  "btnGuestbook.jpg";
	   	imageDB['btnGuestbook']['on'] = new Image(); 		
		imageDB['btnGuestbook']['on'].src=imagepath + "btnGuestbook_over.jpg"
		
		imageDB['btnNews']=new Array();
		imageDB['btnNews']['off'] = new Image(); 	
		imageDB['btnNews']['off'].src=imagepath +  "btnNews.jpg";
	   	imageDB['btnNews']['on'] = new Image(); 		
		imageDB['btnNews']['on'].src=imagepath + "btnNews_over.jpg"
		
		imageDB['btnFriend']=new Array();
		imageDB['btnFriend']['off'] = new Image(); 	
		imageDB['btnFriend']['off'].src=imagepath +  "btnFriend.jpg";
	   	imageDB['btnFriend']['on'] = new Image(); 		
		imageDB['btnFriend']['on'].src=imagepath + "btnFriend_over.jpg"
		
		imageDB['btnNewsClipping']=new Array();
		imageDB['btnNewsClipping']['off'] = new Image(); 	
		imageDB['btnNewsClipping']['off'].src=imagepath +  "btnNewsClipping.jpg";
	   	imageDB['btnNewsClipping']['on'] = new Image(); 		
		imageDB['btnNewsClipping']['on'].src=imagepath + "btnNewsClipping_over.jpg"
		
		ready = true;
}

function changeImages(btn_name, on_option){
	if (ready && on_option) document.images[btn_name].src=imageDB[btn_name]['on'].src;
	if (ready && !on_option) document.images[btn_name].src=imageDB[btn_name]['off'].src;
}