// ---------- menu control

function mopen(xx,yy) {
	var source = "/wp/wp-content/themes/otis_custom_2010/img/menu_" + xx + ".jpg";
	document.getElementById(xx).style.backgroundImage = 'url("' + source + '")'; 
	document.getElementById(yy).style.visibility = "visible";
}
function mclose(xx,yy) {
	document.getElementById(xx).style.backgroundImage = 'url("/wp/wp-content/themes/otis_custom_2010/img/blank.gif")'; 
	document.getElementById(yy).style.visibility = "hidden";
}