var acolor;
acolor = 'white';

function menubg(cl) {

cn1 = document.getElementById('c'+cl);
cn2 = document.getElementById('cd'+cl);

if ( acolor == 'white' ) {
	acolor = '#e5e5e5';
	acolor2='#ff7b00';
} else {
	acolor = 'white';
	acolor2= 'white';
};

cn1.style.background = acolor;
cn2.style.background = acolor2;

};