var a1,a2,a3,a4
	var state1
	var mapnum
	
	if (document.images){
	
		imag = new Array();
			imag[0] = "images/map0.gif";
			imag[1] = "images/map1.gif";
			imag[2] = "images/map2.gif";
			imag[3] = "images/map3.gif";
			imag[4] = "images/map4.gif";
			imag[5] = "images/r_arrow.gif";
			imag[6] = "images/d_arrow.gif";
			
			im = new Array();
			for (var i = 0; i < imag.length; i++)
			
				{
				im[i] = new Image();
				im[i].src = imag[i];
				}
		}
		
	function toggleImage(imgName,num){
		if (document.images && imgName){
			imgName.src = im[num].src;
			}
		return;
	}

	
	function toggleArrowWithText(objectID) {
		domStyle = findDOM(objectID,1);
		
		if (domStyle.display == 'block')  {
				domStyle.display='none';
				state1=5;
				}
		else	{
				domStyle.display='block';
				state1=6;
				}

	}
	

	var altPage
	
	function reroute(altPage) {
		if (isAll || isID) { }
		else {
			destination = altPage + '.html';
			self.location = destination;
		}
	}