// array of images   
		var imgs = new Array(20);     
		imgs[0]="/images/menu/menu_01.gif";
		imgs[1]="/images/menu/menu_over_01.gif";
		imgs[2]="/images/menu/menu_02.gif";
		imgs[3]="/images/menu/menu_over_02.gif";
		imgs[4]="/images/menu/menu_03.gif";
		imgs[5]="/images/menu/menu_over_03.gif";
		imgs[6]="/images/menu/menu_04.gif";
		imgs[7]="/images/menu/menu_over_04.gif";
		imgs[8]="/images/menu/menu_05.gif";
		imgs[9]="/images/menu/menu_over_05.gif";
		imgs[10]="/images/menu/menu_06.gif";
		imgs[11]="/images/menu/menu_over_06.gif";
		imgs[12]="/images/menu/menu_07.gif";
		imgs[13]="/images/menu/menu_over_07.gif";
		imgs[14]="/images/menu/menu_08.gif";
		imgs[15]="/images/menu/menu_over_08.gif";
		imgs[16]="/images/menu/menu_09.gif";
		imgs[17]="/images/menu/menu_over_09.gif";
		imgs[18]="/images/menu/menu_10.gif";
		imgs[19]="/images/menu/menu_over_10.gif";

		 	 
			// preload the images   
		 function preload() {    
		 var tmp = null;    
		 for (var j = 0; j < imgs.length; j++) {      
		 tmp = imgs[j];      
		 imgs[j] = new Image();      
		 imgs[j].src = tmp;    
		 }   
		 }   
		 void(preload());     
		 
		 // swap images   
		 function imgSwap(img, swap) {    
		 img.src = imgs[swap].src;   
		 }   
var timerID = null;

n = (document.layers) ? 1:0
ie = (document.all) ? 1:0

function closeall()
{	
		if (ie)
		{
			dropdown1.style.visibility="hidden"; 
			dropdown2.style.visibility="hidden";
			dropdown3.style.visibility="hidden"; 
			dropdown4.style.visibility="hidden";
			dropdown5.style.visibility="hidden";
			dropdown6.style.visibility="hidden";
			dropdown7.style.visibility="hidden";
			dropdown8.style.visibility="hidden";  
		}
		else if (n)
		{ 
			document.dropdown1.visibility="hide"; 
			document.dropdown2.visibility="hide"; 
			document.dropdown3.visibility="hide"; 
			document.dropdown4.visibility="hide"; 
			document.dropdown5.visibility="hide"; 
			document.dropdown6.visibility="hide"; 
			document.dropdown7.visibility="hide"; 
			document.dropdown8.visibility="hide";
		}				
		else 
		{
			document.getElementById('dropdown1').style.visibility="hidden"; 
			document.getElementById('dropdown2').style.visibility="hidden";
			document.getElementById('dropdown3').style.visibility="hidden"; 
			document.getElementById('dropdown4').style.visibility="hidden";
			document.getElementById('dropdown5').style.visibility="hidden";
			document.getElementById('dropdown6').style.visibility="hidden";
			document.getElementById('dropdown7').style.visibility="hidden";
			document.getElementById('dropdown8').style.visibility="hidden"; 
	 }	
	}


function openclose(drop){
	closeall();
	clearTimeout(timerID);	
	if (n){ document.layers[drop].visibility="show" }
	else if (ie){ document.all[drop].style.visibility="visible" }
	else {document.getElementById(drop).style.visibility="visible" }
}