function overIndexImage(i)
{
       images = new Array('making.jpg', 'front_blk.jpg', 'product_blk.jpg', 'reception_blk.jpg')

       var new_image = images[i]
       document.getElementById("making_jpg").src = 'images/'+new_image;
}

function MM_preloadImages() 
{
   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++)
      {
         d.MM_p[j]=new Image; 
         d.MM_p[j++].src=a[i];
      }
   }
}