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 MM_swapImage1(var1,var2,var3,var4,ID)
        {
          var div_Id1 =  document.getElementById('div1');
          var div_Id2 =  document.getElementById('div2');
          var oImage1 = d('Image1');
          var oImage2 = d('Image2');
          if (ID == "div1")
          {
          div_Id1.style.display = 'block';
          div_Id2.style.display = 'none';

          oImage1.src = "images_edu/ajax_nav_img/prod_01_on.gif";
          oImage2.src = "images_edu/ajax_nav_img/prod_02_off.gif";
          }
          else if(ID == "div2")
          {
          div_Id1.style.display = 'none';
          div_Id2.style.display = 'block';

          oImage1.src = "images_edu/ajax_nav_img/prod_01_off.gif";
          oImage2.src = "images_edu/ajax_nav_img/prod_01_on.gif";
          }
        }
        
        
 function showdiv(id)
 {
 var my=document.getElementById (id);
 if (my.style.display=="none")
 {
 my.style.display="";
 
 }
 else 
 {
 my.style.display="none";
  }
 }