enable_nav = function(){  


	hide_menu = function(){ jQuery("#psub").animate({ "opacity": "hide" }, "fast"); }
	startTimer = function(){ nav_timer = setTimeout("hide_menu()", 1000); }
	killTimer = function(){clearTimeout(nav_timer);}

			jQuery("#nav ul li.pr a").mouseover(function () {
                   jQuery("#psub").animate({ "opacity": "show" }, "slow");
			}); 

            jQuery("#psub").mouseover(function () {
	        
	            killTimer();
            });      

			 jQuery("#psub li a").mouseover(function () {  
				    try{ killTimer();  } catch(err){  }   
		     });   

            jQuery("#psub li a").mouseout(function () {
	               
                  startTimer();
            });

			jQuery(".n a").mouseover(function () {
			       jQuery("#psub").css({display:"none"});
                              
			});	
			
			jQuery("#content").mouseover(function () {
			       jQuery("#psub").css({display:"none"});
                              
			});

}