var arrow = new Image();
	 arrow.src = "images/arrow.gif";
	 arrow1 = new Image();
	 arrow1.src = "images/arrow1.gif";
	 hideTimer = window.setTimeout("hideall()", 0);

	 
 function hidemenuTimer() 
 	{
 	  	if (hideTimer) window.clearTimeout(hideTimer);
 		hideTimer = window.setTimeout("hideall()", 2000);
	}
	
	
function StophidemenuTimer() 
 	{
 	  	window.clearTimeout(hideTimer);
	}


 function hideall() {
 
	hidesub();

		       a = document.getElementById('menu1')
		       a.style.visibility='hidden';
			   a = document.getElementById('menu2')
		       a.style.visibility='hidden';
			   a = document.getElementById('menu3')
		       a.style.visibility='hidden';
			   a = document.getElementById('menu4')
		       a.style.visibility='hidden';
			   a = document.getElementById('menu5')
		       a.style.visibility='hidden';
			   a = document.getElementById('menu6')
		       a.style.visibility='hidden';
			   a = document.getElementById('menu7')
		       a.style.visibility='hidden';
			    a = document.getElementById('menu9')
		       a.style.visibility='hidden';
			
				document.img_bt1.src = arrow.src;
				document.img_bt2.src = arrow.src;
				document.img_bt3.src = arrow.src;
				document.img_bt4.src = arrow.src;
				document.img_bt5.src = arrow.src;
				document.img_bt6.src = arrow.src;
				document.img_bt7.src = arrow.src;
				document.img_bt9.src = arrow.src;
 	}
 
function hidesub() {
 

			   a = document.getElementById('submenu151')
		       a.style.visibility='hidden';
		       a = document.getElementById('submenu311')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu321')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu331')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu341')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu351')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu361')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu511')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu521')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu531')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu541')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu551')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu561')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu911')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu921')
		       a.style.visibility='hidden';
			   a = document.getElementById('submenu931')
		       a.style.visibility='hidden';

			document.img_bt15.src = arrow.src;
			document.img_bt31.src = arrow.src;
			document.img_bt32.src = arrow.src;
			document.img_bt33.src = arrow.src;
			document.img_bt34.src = arrow.src;
			document.img_bt35.src = arrow.src;
			document.img_bt36.src = arrow.src;
			document.img_bt51.src = arrow.src;
			document.img_bt52.src = arrow.src;
			document.img_bt53.src = arrow.src;
			document.img_bt54.src = arrow.src;
			document.img_bt55.src = arrow.src;
			document.img_bt56.src = arrow.src;
			document.img_bt91.src = arrow.src;
			document.img_bt92.src = arrow.src;
			document.img_bt93.src = arrow.src;
 }


 function activ(what) {
 
 	StophidemenuTimer();
 
 	hideall();
	
		switch(what) {
			 case 1: { 
		    	   a = document.getElementById('menu1')
			       a.style.visibility='visible';
				   document.img_bt1.src = arrow1.src;
		    		 }
					  break;
			case 2: { 
		    	   a = document.getElementById('menu2')
			       a.style.visibility='visible';
				   document.img_bt2.src = arrow1.src;
		    		 }
					  break;
			case 3: { 
		    	   a = document.getElementById('menu3')
			       a.style.visibility='visible';
				   document.img_bt3.src = arrow1.src;
		    		 }
					  break;
			case 4: { 
		    	   a = document.getElementById('menu4')
			       a.style.visibility='visible';
				   document.img_bt4.src = arrow1.src;
		    		 }
					  break;
			case 5: { 
		    	   a = document.getElementById('menu5')
			       a.style.visibility='visible';
				   document.img_bt5.src = arrow1.src;
		    		 }
					  break;
			case 6: { 
		    	   a = document.getElementById('menu6')
			       a.style.visibility='visible';
				   document.img_bt6.src = arrow1.src;
		    		 }
					  break;
			case 7: { 
		    	   a = document.getElementById('menu7')
			       a.style.visibility='visible';
				   document.img_bt7.src = arrow1.src;
		    		 }
					  break;
		   case 9: { 
		    	   a = document.getElementById('menu9')
			       a.style.visibility='visible';
				   document.img_bt9.src = arrow1.src;
		    	   }
					  break;
			}
 }

 function activsubmenu(what) {
 
 	StophidemenuTimer();
 
	hidesub();
	
		 switch(what) {
		     
			 case 15: { 
			 	   document.img_bt15.src = arrow1.src;
		    	   a = document.getElementById('submenu151')
			       a.style.visibility='visible';
				   
		    		 }
					  break;
			 case 31: { 
		    	   a = document.getElementById('submenu311')
			       a.style.visibility='visible';
				   document.img_bt31.src = arrow1.src;
		    		 }
					  break;
			case 32: { 
				   document.img_bt32.src = arrow1.src;
		    	   a = document.getElementById('submenu321')
			       a.style.visibility='visible';
		    		 }
					  break;
			case 33: { 
				   document.img_bt33.src = arrow1.src;
		    	   a = document.getElementById('submenu331')
			       a.style.visibility='visible';
		    		 }
					  break;
			case 34: { 
				   document.img_bt34.src = arrow1.src;
		    	   a = document.getElementById('submenu341')
			       a.style.visibility='visible';
		    		 }
					  break;
			case 35: { 
				   document.img_bt35.src = arrow1.src;
		    	   a = document.getElementById('submenu351')
			       a.style.visibility='visible';
		    		 }
					  break;
			case 36: { 
			       document.img_bt36.src = arrow1.src;
		    	   a = document.getElementById('submenu361')
			       a.style.visibility='visible';
		    		 }
					  break;
		   case 51: { 
		   		   document.img_bt51.src = arrow1.src;
		    	   a = document.getElementById('submenu511')
			       a.style.visibility='visible';
		    		 }
					  break;
		   case 52: { 
		   		   document.img_bt52.src = arrow1.src;
		    	   a = document.getElementById('submenu521')
			       a.style.visibility='visible';
		    		 }
					  break;
		  case 53: { 
		  		   document.img_bt53.src = arrow1.src;
		    	   a = document.getElementById('submenu531')
			       a.style.visibility='visible';
		    		 }
					  break;
			case 54: { 
				   document.img_bt54.src = arrow1.src;
		    	   a = document.getElementById('submenu541')
			       a.style.visibility='visible';
		    		 }
					  break;
			case 55: { 
				   document.img_bt55.src = arrow1.src;
		    	   a = document.getElementById('submenu551')
			       a.style.visibility='visible';
		    		 }
					  break;
			case 56: { 
				   document.img_bt56.src = arrow1.src;
		    	   a = document.getElementById('submenu561')
			       a.style.visibility='visible';
		    		 }
					  break;
		    case 91: { 
				   document.img_bt91.src = arrow1.src;
		    	   a = document.getElementById('submenu911')
			       a.style.visibility='visible';
		    		 }
					  break;
		    case 92: { 
				   document.img_bt92.src = arrow1.src;
		    	   a = document.getElementById('submenu921')
			       a.style.visibility='visible';
		    		 }
					  break;
		    case 93: { 
				   document.img_bt93.src = arrow1.src;
		    	   a = document.getElementById('submenu931')
			       a.style.visibility='visible';
		    		 }
					  break;
			}
 }