//nav.js
//change two image @navigation area

function navchg(name,on_off){
	ImgDir="navi/";
	if(on_off){
		il_chimg(ImgDir + name + '_j.gif',name);
		il_chimg(ImgDir + name + '_view.gif','view');
	}
	else{
		il_chimg(ImgDir + name + '.gif',name);
		il_chimg(ImgDir + 'view01.gif','view');
	}
}