function get_page_height()  {    if (document.body.offsetHeight)    {      return document.body.offsetHeight;    }    else    {      return "100%";    }  }  function get_page_width()  {    if (document.body.offsetWidth)    {      return document.body.offsetWidth;    }    else    {      return "100%";    }  }  function show_hide_overlay_image_view(image_source)  {    id_overlay="image_overlay_background";    id_image="image_overlay_view";    overlay_ref=(document.getElementById ? document.getElementById(id_overlay) : (document.all ? document.all[id_overlay] : null));    image_ref=(document.getElementById ? document.getElementById(id_image) : (document.all ? document.all[id_image] : null));    switch_overlay_image_large_view(image_source);    if (get_page_height()=='100%')    {      overlay_ref.style.height='100%';      image_ref.style.height='98%';    }    else    {      overlay_ref.style.height=(get_page_height()+10)+"px";      image_ref.style.height=(parseInt(get_page_height())-60)+"px";    }    if (get_page_width()=='100%')    {      overlay_ref.style.width='100%';      image_ref.style.width='95%';    }    else    {      overlay_ref.style.width=(get_page_width()<=990 ? "1000px" : (get_page_width()+10)+"px");      image_ref.style.width=(get_page_width()<=990 ? "940px" : (parseInt(get_page_width())*0.96)+"px");    }    overlay_ref.style.display=(overlay_ref.style.display=='block' ? 'none' : 'block');    image_ref.style.display=(image_ref.style.display=='block' ? 'none' : 'block');    self.location.href="#top";  }  function switch_overlay_image_large_view(image_source)  {    id_image="image_overlay_view";    image_ref=(document.getElementById ? document.getElementById(id_image) : (document.all ? document.all[id_image] : null));    image_tag=image_ref.childNodes[0].childNodes[2].childNodes[0];    if (image_source.length>1)    {      if (image_source=='')      {        image_tag.src="";      }      else      {        image_tag.src=image_source;      }    }    else    {      image_tag.src='';    }  }  function disable_filesubmit_on_upload(objref)  {    objref.disabled=true;  }  function show_div_byid(objref)  {    div_ref=(document.getElementById ? document.getElementById(objref) : (document.all ? document.all[objref] : null));    if (div_ref)    {      div_ref.style.display='block';    }  }  function hide_div_byid(objref)  {    div_ref=(document.getElementById ? document.getElementById(objref) : (document.all ? document.all[objref] : null));    if (div_ref)    {      div_ref.style.display='none';    }  }  function show_div_byref(objref)  {    if (objref.nodeName=='DIV')    {      objref.style.display='block';    }  }  function hide_div_byref(objref)  {    if (objref.nodeName=='DIV')    {      objref.style.display='none';    }  }