function nav_overs(elem)
		{
			var pnav = document.getElementById(elem);
			
			var nav_items = pnav.getElementsByTagName('li');
			for(i=0;i<nav_items.length;i++){
				//dont try to make rollovers for images with no_rollover class
				if(nav_items[i].className != 'act'){
					nav_items[i].onmouseover=function(){this.className = 'act';}
					nav_items[i].onmouseout=function(){this.className = '';}
				}				
				
			}
			
			
			
		}
		
		timer = null;

		function fadeIn(id){
		if(timer) clearTimeout(timer);
		$(id).fadeIn('fast');
		$('#treatments').addClass('act');
		}

		function fadeOut(id){
		timer = setTimeout("doFade('"+id+"')",100);
		}

		function doFade(id){
		$(id).fadeOut('fast');
		$('#treatments').removeClass('act');
		}

		window.onload=function(){
			nav_overs('nav');
			formEvents();
		}