mImgOn=new Image();
mImgOff=new Image();
mImgOn.src='img/ara.gif';
mImgOff.src='img/ar.gif';

function LMenuImgOnOff(name, on){
	document.images[name].src=(on)?mImgOn.src:mImgOff.src;
}

rmImgOn=new Array();
rmImgOff=new Array();
for(i=1;i<=4;i++){
	rmImgOn[i]=new Image();
	rmImgOff[i]=new Image();
	rmImgOn[i].src='img/rm'+i+'a.gif';
	rmImgOff[i].src='img/rm'+i+'.gif';
}

function RMenuImgOnOff(num, on){
	name='rm'+num;
	document.images[name].src=(on)?rmImgOn[num].src:rmImgOff[num].src;
}