function go_left () {
	        if (a == 0) {a = 4;} else {a = a -1;}
	        document.getElementById(0).src = navigation[a];
			document.getElementById('link0').href = url[a];
	        if (b == 0) {b = 4;} else {b = b -1;}
	        document.getElementById(1).src = navigation[b];
			document.getElementById('link1').href = url[b];
			if (c == 0) {c = 4;} else {c = c -1;}
	        document.getElementById(2).src = navigation[c];
			document.getElementById('link2').href = url[c];
	        if (d == 0) {d = 4;} else {d = d -1;}
	        document.getElementById(3).src = navigation[d];
			document.getElementById('link3').href = url[d];
			if (e == 0) {e = 4;} else {e = e -1;}
	        document.getElementById(4).src = navigation[e];
			document.getElementById('link4').href = url[e];
	    }
	    
	    function go_right () {
	        if (a == 4) {a = 0;} else {a = a +1;}
	        document.getElementById(0).src = navigation[a];
			document.getElementById('link0').href = url[a];
	        if (b == 4) {b = 0;} else {b = b +1;}
	        document.getElementById(1).src = navigation[b];
	        document.getElementById('link1').href = url[b];
			if (c == 4) {c = 0;} else {c = c +1;}
	        document.getElementById(2).src = navigation[c];
			document.getElementById('link2').href = url[c];
	        if (d == 4) {d = 0;} else {d = d +1;}
	        document.getElementById(3).src = navigation[d];
			document.getElementById('link3').href = url[d];
			if (e == 4) {e = 0;} else {e = e +1;}
	        document.getElementById(4).src = navigation[e];
			document.getElementById('link4').href = url[e];
	    }
		
		function go_left2 () {
	        if (a == 0) {a = 4;} else {a = a -1;}
	        document.getElementById(10).src = second_navigation[a];
			document.getElementById('link10').href = second_url[a];
	        if (b == 0) {b = 4;} else {b = b -1;}
	        document.getElementById(11).src = second_navigation[b];
			document.getElementById('link11').href = second_url[b];
			if (c == 0) {c = 4;} else {c = c -1;}
	        document.getElementById(22).src = second_navigation[c];
			document.getElementById('link22').href = second_url[c];
	        if (d == 0) {d = 4;} else {d = d -1;}
	        document.getElementById(33).src = second_navigation[d];
			document.getElementById('link33').href = second_url[d];
			if (e == 0) {e = 4;} else {e = e -1;}
	        document.getElementById(44).src = second_navigation[e];
			document.getElementById('link44').href = second_url[e];
	    }
	    
	    function go_right2 () {
	        if (a == 4) {a = 0;} else {a = a +1;}
	        document.getElementById(10).src = second_navigation[a];
			document.getElementById('link10').href = second_url[a];
	        if (b == 4) {b = 0;} else {b = b +1;}
	        document.getElementById(11).src = second_navigation[b];
	        document.getElementById('link11').href = second_url[b];
			if (c == 4) {c = 0;} else {c = c +1;}
	        document.getElementById(22).src = second_navigation[c];
			document.getElementById('link22').href = second_url[c];
	        if (d == 4) {d = 0;} else {d = d +1;}
	        document.getElementById(33).src = second_navigation[d];
			document.getElementById('link33').href = second_url[d];
			if (e == 4) {e = 0;} else {e = e +1;}
	        document.getElementById(44).src = second_navigation[e];
			document.getElementById('link44').href = second_url[e];
	    }
		
		function initImage1(id, speed) {
		  imageId1 = id;
		  image1 = document.getElementById(imageId1);
		  setOpacity(image1, 0);
		  image1.style.visibility = 'visible';
		  fadeIn(imageId1,0, speed);
		}
		
		function setOpacity(obj, opacity) {
		  opacity = (opacity == 100)?99.999:opacity;
		  // IE/Win
		  obj.style.filter = "alpha(opacity:"+opacity+")";
		  // Safari<1.2, Konqueror
		  obj.style.KHTMLOpacity = opacity/100;
		  // Older Mozilla and Firefox
		  obj.style.MozOpacity = opacity/100;
		  // Safari 1.2, newer Firefox and Mozilla, CSS3
		  obj.style.opacity = opacity/100;
		}
		
		function fadeIn(objId,opacity,speed) {
		  if (document.getElementById) {
		    obj = document.getElementById(objId);
		    if (opacity <= 100) {
		      setOpacity(obj, opacity);
		      opacity += 8;
		      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", speed);
		    }
		  }
		}