function hovertab(tab,sub) {
	nav = document.getElementById("navigation");
	elems = nav.getElementsByTagName("li");
	for (i=0;i<=elems.length-1;i++){
		if (elems[i].className == "main-tab"){
			elems[i].style.background = "#1090E1";
			}
		}
	tab.style.background = "#294D7D";
	oldsub = document.getElementById("sub_items");
	oldsub.style.display = "none";
	elems = nav.getElementsByTagName("ul");
	for (i=0;i<=elems.length-1;i++){
		if (elems[i].className == "unselected"){
			elems[i].style.display = "none";
			}
		}	
	newsub = document.getElementById(sub);
	newsub.style.display = "block";
	}

function hoverselected(sub) {
	nav = document.getElementById("navigation");
	elems = nav.getElementsByTagName("ul");
	for (i=0;i<=elems.length-1;i++){
		if (elems[i].className == "unselected"){
			elems[i].style.display = "none";
			}
		}
	elem = document.getElementById(sub);
		elem.style.display = "block";
	elems = nav.getElementsByTagName("li");
	for (i=0;i<=elems.length-1;i++){
		if (elems[i].className == "main-tab"){
			elems[i].style.background = "#1090E1";
			}
		}
	}
	
function navout() {
	window.setTimeout('resetnav()',5000);
	}

function resetnav(){
	nav = document.getElementById("navigation");
	elems = nav.getElementsByTagName("li");
	for (i=0;i<=elems.length-1;i++){
		if (elems[i].className == "main-tab"){
			elems[i].style.background = "#1090E1";
			}
		}
	elems = nav.getElementsByTagName("ul");
	for (i=0;i<=elems.length-1;i++){
		if (elems[i].className == "unselected"){
			elems[i].style.display = "none";
			}
		if (elems[i].className == "sub_tabs"){
			elems[i].style.display = "block";
			}
		}
	}