function toggtleClass(obj,cls1,cls2) {
	if ( obj.className==cls1 ) {
		obj.className = cls2;
		obj2 = next(obj);
		obj2.className = "white";
	} else {
		obj.className = cls1;
		obj2 = next(obj);
		obj2.className = "orange";
	}
}

function next(obj) {
	do {
		obj = obj.nextSibling;
	} while (obj && obj.nodeType != 1);
	return obj;                
}