function cs_nav_hover(id) {
var navi = new Array("club", "contact", "misc");
for (a=0; a < navi.length; a++) {

if(id != navi[a]) { 
	  document.getElementById("sub_" + navi[a]).style.display = 'none';
	}
	}
	document.getElementById("sub_" + id).style.display = 'block';
}