navHover = function() {
	var lis = document.getElementById("nav-menu").getElementsByTagName("LI");
	for (var i=0; i<lis.length; i++) {
		lis[i].onmouseover=function() {
			this.className+=" iehover";
		}
		lis[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" iehover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", navHover);

function SubMenuITsolution(){
	menu=document.getElementById('menu-it-solution').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuLanguage(){
	menu=document.getElementById('menu-language').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuLanguageEnglish(){
	menu=document.getElementById('menu-language-english').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuPutonghua(){
	menu=document.getElementById('menu-putonghua').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuBusiness(){
	menu=document.getElementById('menu-business').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuCertification(){
	menu=document.getElementById('menu-certification').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuAcademic(){
	menu=document.getElementById('menu-academic').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuRooms(){
	menu=document.getElementById('menu-rooms').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuSubInfoWC(){
	menu=document.getElementById('menu-sub-info-wc').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}
function SubMenuSubInfoJordan(){
	menu=document.getElementById('menu-sub-info-jordan').style;
	if(menu.display=="none"){
		menu.display="block";	
	}else{
		menu.display="none";
	}
}