function pg_ld(){
	mnu_img_count = 6;
	mnu_img = new Array();

	for(i = 1; i < mnu_img_count; i ++){
		mnu_img[i] = new Image;
		mnu_img[i].src = "img/mnu_" + i + "_3.gif";
	}
}

function mnu_ch(add,fle){
	document.getElementById('img_mnu_' + add).src = "img/mnu_" + add + "_" + fle + ".gif";
}