function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function resettoggle() {

var e1 = document.getElementById('a1');
e1.style.display = 'none';
var e2 = document.getElementById('a2');
e2.style.display = 'none';
var e3 = document.getElementById('a3');
e3.style.display = 'none';
var e4 = document.getElementById('a4');
e4.style.display = 'none';
var e7 = document.getElementById('a7');
e7.style.display = 'none';
var e8 = document.getElementById('a8');
e8.style.display = 'none';
var e9 = document.getElementById('a9');
e9.style.display = 'none';
var e10 = document.getElementById('a10');
e10.style.display = 'none';
var e11 = document.getElementById('a11');
e11.style.display = 'none';
var e12 = document.getElementById('a12');
e12.style.display = 'none';
var e13 = document.getElementById('a13');
e13.style.display = 'none';
var e14 = document.getElementById('a14');
e14.style.display = 'none';
var e15 = document.getElementById('a15');
e15.style.display = 'none';
var e16 = document.getElementById('a16');
e16.style.display = 'none';
}

function toggle_visibility(id) {
var e = document.getElementById(id);
if(e.style.display == 'none')
e.style.display = 'block';
else
e.style.display = 'none';
}