function menuFix() {
        var sfEls = document.getElementById("nav").getElementsByTagName("li");
        for (var i=0; i<sfEls.length; i++) {
      sfEls[i].onmouseover=function() {
      this.className+=(this.className.length>0? " ": "") + "sfhover";
      }
      sfEls[i].onMouseDown=function() {
      this.className+=(this.className.length>0? " ": "") + "sfhover";
      }
      sfEls[i].onMouseUp=function() {
      this.className+=(this.className.length>0? " ": "") + "sfhover";
      }
      sfEls[i].onmouseout=function() {
      this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), 
"");
      }
        }
}
window.onload=menuFix;




function nav(i){
		selectnav(i);
	}
	function selectnav(i){
		switch(i){
			case 1:
			document.getElementById("nav1").style.display="block";
			document.getElementById("nav2").style.display="none";
			document.getElementById("nav3").style.display="none";
			document.getElementById("nav4").style.display="none";
			document.getElementById("nav5").style.display="none";
			document.getElementById("nav6").style.display="none";
			document.getElementById("nav7").style.display="none";
			document.getElementById("nav8").style.display="none";
			break;
			case 2:
			document.getElementById("nav1").style.display="none";
			document.getElementById("nav2").style.display="block";
			document.getElementById("nav3").style.display="none";
			document.getElementById("nav4").style.display="none";
			document.getElementById("nav5").style.display="none";
			document.getElementById("nav6").style.display="none";
			document.getElementById("nav7").style.display="none";
			document.getElementById("nav8").style.display="none";
			break;
			case 3:
			document.getElementById("nav1").style.display="none";
			document.getElementById("nav2").style.display="none";
			document.getElementById("nav3").style.display="block";
			document.getElementById("nav4").style.display="none";
			document.getElementById("nav5").style.display="none";
			document.getElementById("nav6").style.display="none";
			document.getElementById("nav7").style.display="none";
			document.getElementById("nav8").style.display="none";
			break;
			case 4:
			document.getElementById("nav1").style.display="none";
			document.getElementById("nav2").style.display="none";
			document.getElementById("nav3").style.display="none";
			document.getElementById("nav4").style.display="block";
			document.getElementById("nav5").style.display="none";
			document.getElementById("nav6").style.display="none";
			document.getElementById("nav7").style.display="none";
			document.getElementById("nav8").style.display="none";
			break;
			case 5:
			document.getElementById("nav1").style.display="none";
			document.getElementById("nav2").style.display="none";
			document.getElementById("nav3").style.display="none";
			document.getElementById("nav4").style.display="none";
			document.getElementById("nav5").style.display="block";
			document.getElementById("nav6").style.display="none";
			document.getElementById("nav7").style.display="none";
			document.getElementById("nav8").style.display="none";
			break;
			case 6:
			document.getElementById("nav1").style.display="none";
			document.getElementById("nav2").style.display="none";
			document.getElementById("nav3").style.display="none";
			document.getElementById("nav4").style.display="none";
			document.getElementById("nav5").style.display="none";
			document.getElementById("nav6").style.display="block";
			document.getElementById("nav7").style.display="none";
			document.getElementById("nav8").style.display="none";
			break;
			case 7:
			document.getElementById("nav1").style.display="none";
			document.getElementById("nav2").style.display="none";
			document.getElementById("nav3").style.display="none";
			document.getElementById("nav4").style.display="none";
			document.getElementById("nav5").style.display="none";
			document.getElementById("nav6").style.display="none";
			document.getElementById("nav7").style.display="block";
			document.getElementById("nav8").style.display="none";
			break;
			case 8:
			document.getElementById("nav1").style.display="none";
			document.getElementById("nav2").style.display="none";
			document.getElementById("nav3").style.display="none";
			document.getElementById("nav4").style.display="none";
			document.getElementById("nav5").style.display="none";
			document.getElementById("nav6").style.display="none";
			document.getElementById("nav7").style.display="none";
			document.getElementById("nav8").style.display="block";
			break;
		}
	}
	

	
	function js(i){
		selectjs(i);
	}
	function selectjs(i){
		switch(i){
			case 1:
			document.getElementById("js1").style.display="block";
			document.getElementById("js2").style.display="none";
			document.getElementById("js3").style.display="none";
			document.getElementById("js4").style.display="none";
			break;
			case 2:
			document.getElementById("js1").style.display="none";
			document.getElementById("js2").style.display="block";
			document.getElementById("js3").style.display="none";
			document.getElementById("js4").style.display="none";
			break;
			case 3:
			document.getElementById("js1").style.display="none";
			document.getElementById("js2").style.display="none";
			document.getElementById("js3").style.display="block";
			document.getElementById("js4").style.display="none";
			break;
			case 4:
			document.getElementById("js1").style.display="none";
			document.getElementById("js2").style.display="none";
			document.getElementById("js3").style.display="none";
			document.getElementById("js4").style.display="block";
			break;
		}
	}

	function news(i){
		selectnews(i);
	}
	function selectnews(i){
		switch(i){
			case 1:
			document.getElementById("news1").style.display="block";
			document.getElementById("news2").style.display="none";
			break;
			case 2:
			document.getElementById("news1").style.display="none";
			document.getElementById("news2").style.display="block";
			break;
		}
	}

	function xx(i){
		selectxx(i);
	}
	function selectxx(i){
		switch(i){
			case 1:
			document.getElementById("xx1").style.display="block";
			document.getElementById("xx2").style.display="none";
			document.getElementById("xx3").style.display="none";
			document.getElementById("xx4").style.display="none";
			document.getElementById("xx5").style.display="none";
			document.getElementById("xx6").style.display="none";
			document.getElementById("xx7").style.display="none";
			break;
			case 2:
			document.getElementById("xx1").style.display="none";
			document.getElementById("xx2").style.display="block";
			document.getElementById("xx3").style.display="none";
			document.getElementById("xx4").style.display="none";
			document.getElementById("xx5").style.display="none";
			document.getElementById("xx6").style.display="none";
			document.getElementById("xx7").style.display="none";
			break;
			case 3:
			document.getElementById("xx1").style.display="none";
			document.getElementById("xx2").style.display="none";
			document.getElementById("xx3").style.display="block";
			document.getElementById("xx4").style.display="none";
			document.getElementById("xx5").style.display="none";
			document.getElementById("xx6").style.display="none";
			document.getElementById("xx7").style.display="none";
			break;
			case 4:
			document.getElementById("xx1").style.display="none";
			document.getElementById("xx2").style.display="none";
			document.getElementById("xx3").style.display="none";
			document.getElementById("xx4").style.display="block";
			document.getElementById("xx5").style.display="none";
			document.getElementById("xx6").style.display="none";
			document.getElementById("xx7").style.display="none";
			break;
			case 5:
			document.getElementById("xx1").style.display="none";
			document.getElementById("xx2").style.display="none";
			document.getElementById("xx3").style.display="none";
			document.getElementById("xx4").style.display="none";
			document.getElementById("xx5").style.display="block";
			document.getElementById("xx6").style.display="none";
			document.getElementById("xx7").style.display="none";
			break;
			case 6:
			document.getElementById("xx1").style.display="none";
			document.getElementById("xx2").style.display="none";
			document.getElementById("xx3").style.display="none";
			document.getElementById("xx4").style.display="none";
			document.getElementById("xx5").style.display="none";
			document.getElementById("xx6").style.display="block";
			document.getElementById("xx7").style.display="none";
			break;
			case 7:
			document.getElementById("xx1").style.display="none";
			document.getElementById("xx2").style.display="none";
			document.getElementById("xx3").style.display="none";
			document.getElementById("xx4").style.display="none";
			document.getElementById("xx5").style.display="none";
			document.getElementById("xx6").style.display="none";
			document.getElementById("xx7").style.display="block";
			break;
		}
	}