var MenuRollTimeout
var hidemenu = new Array('nav-aboutSub','nav-assessSub','nav-nddSub','nav-reflexSub','nav-learnSub','nav-trainSub','nav-researchSub','nav-publiSub','nav-confSub');
function menuDropDown(div,act) {
	if(act == "show"){
		MenuRollTimeout = window.clearTimeout(MenuRollTimeout);
		for(var i=0;i<=8;i++){
			document.getElementById(hidemenu[i]).style.visibility = 'hidden';
		}
		document.getElementById(div).style.visibility = 'visible';
	}else{
		MenuRollTimeout = window.setTimeout("menuDropDownHide('','hide')", 500);
	}
}
function menuDropDownHide() {
	for(var i=0;i<=8;i++){
		document.getElementById(hidemenu[i]).style.visibility = 'hidden';
	}
}
function ctaOver(cta){
	document.getElementById(cta).style.textDecoration = 'none';
}
function ctaOut(cta){
	document.getElementById(cta).style.textDecoration = 'underline';	
}