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_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_findObj(n, d) { //v3.0
  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); 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];}
}



// browser: 0=unknown; 1=MSIE; 2=NS; 3=NS6
 var browser = 0;
 if (document.all) browser = 1;
 if (document.layers) browser = 2;
 if (parseInt(navigator.appVersion) >= 5 && navigator.appVersion.indexOf("MSIE 5") == -1) browser=3;  

      
 var currBlk = 0;

 function pBlk(n,flag) {
  if (flag == 0) { var s = 'hidden' } else { var s = 'visible' };
  var idblk = 'info'+ n;

  if (browser == 2) 
  { document.layers[idblk].visibility = s; } 

  if (browser == 3) 
  {document.getElementById(idblk).style.visibility = s; } 

  if (browser == 1) 
  { document.all.item(idblk).style.visibility = s; }
 }

 function showTBlk(n) {
  pBlk(n,1);
 }
 function hideTBlk(n) {
   if (currBlk > 0) pBlk(n,0);
 }

 function up(n) {
  if (currBlk > 0) hideTBlk(currBlk);
  showTBlk(n);
  currBlk = n;
 }