function  togglesubnav(parent){
		if (document.getElementById(parent+"sub1").className=="menuhidden") {
			document.getElementById(parent+"sub1").className="submenushow";
			document.getElementById(parent+"sub2").className="submenushow";
			document.getElementById(parent+"sub3").className="submenushow";
			document.getElementById(parent+"sub4").className="submenushow";
			document.getElementById(parent+"sub5").className="submenushow";
			document.getElementById(parent+"sub6").className="submenushow";
			document.getElementById(parent+"sub7").className="submenushow";
			document.getElementById(parent+"sub8").className="submenushow";
			document.getElementById(parent+"sub9").className="submenushow";
			document.getElementById(parent+"sub10").className="submenushow";
			document.getElementById(parent+"sub11").className="submenushow";
			document.getElementById(parent+"sub12").className="submenushow";
			document.getElementById(parent+"sub13").className="submenushow";
			document.getElementById(parent+"sub14").className="submenushow";
			document.getElementById(parent+"sub15").className="submenushow";
			}
		else {
			document.getElementById(parent+"sub1").className="menuhidden";
			document.getElementById(parent+"sub2").className="menuhidden";
			document.getElementById(parent+"sub3").className="menuhidden";
			document.getElementById(parent+"sub4").className="menuhidden";
			document.getElementById(parent+"sub5").className="menuhidden";
			document.getElementById(parent+"sub6").className="menuhidden";
			document.getElementById(parent+"sub7").className="menuhidden";
			document.getElementById(parent+"sub8").className="menuhidden";
			document.getElementById(parent+"sub9").className="menuhidden";
			document.getElementById(parent+"sub10").className="menuhidden";
			document.getElementById(parent+"sub11").className="menuhidden";
			document.getElementById(parent+"sub12").className="menuhidden";
			document.getElementById(parent+"sub13").className="menuhidden";
			document.getElementById(parent+"sub14").className="menuhidden";
			document.getElementById(parent+"sub15").className="menuhidden";
			}		
		}