// JavaScript Document

function img_roll(option){
	var name = option.getAttribute("id");
	
	if(name == "cater"){
		option.setAttribute("src","images/cater_over.gif")
	}else if(name == "gift"){
		option.setAttribute("src","images/gift_over.gif")
	}else if(name == "party"){
		option.setAttribute("src","images/party_over.gif")
	}
}

function img_unroll(option){
	var name = option.getAttribute("id");
	
	if(name == "cater"){
		option.setAttribute("src","images/cater.gif")
	}else if(name == "gift"){
		option.setAttribute("src","images/gift.gif")
	}else if(name == "party"){
		option.setAttribute("src","images/party.gif")
	}
}