var newsURL;

		var navButtons = new Array();
		navButtons[1] = new Array("doctor2");
		navButtons[2] = new Array("conditions");
		navButtons[3] = new Array("treatments");
		navButtons[4] = new Array("location2");
		navButtons[5] = new Array("newsletter");
		navButtons[6] = new Array("promotions");
		navButtons[7] = new Array("appointment");
		navButtons[8] = new Array("email2");
		navButtons[9] = new Array("emaillist");
		navButtons[10] = new Array("home");


		if (document.images){
			btn = new Array();
			for (var i = 1; i < navButtons.length; i++){
				btn[i] = new Image();
				btnsrc = "images/btn" + navButtons[i][0] + ".gif";
				btn[i].src = btnsrc;
				btn[i*100] = new Image();						// multiply by 100 to place image_over files in array
				btnoversrc = "images/btn" + navButtons[i][0] + "over.gif";
				btn[i*100].src = btnoversrc;
			}
		}

		function toggleBtn(num,n){
			btnName = eval('document.navBtn' + n);
			if (document.images && btnName){
				if (n != pgNo){
					btnName.src = btn[num].src;
				}
			}
			return;
		}