function fixPNG(element)
{
  if (/MSIE (5\.5|6).+Win/.test(navigator.userAgent))
  {
    var src;
	
    if (element.tagName=='IMG')
    {
      if (/\.png$/.test(element.src))
      {
        src = element.src;
        element.src = path+"/images/blank.gif";
      }
    }
    else
    {
      src = element.currentStyle.backgroundImage.match(/url\("(.+\.png)"\)/i);
      if (src)
      {
        src = src[1];
        element.runtimeStyle.backgroundImage="none";
      }
    }
    if (src) element.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
  }
}
function _toggle(id)
{
  document.getElementById(id).style.display = '';
  for (i=0;i<arr.length;i++) 
  {
     if ('table_'+arr[i] == id)
     {
        document.getElementById('img_'+arr[i]).src = path+'/images/arrow_on.gif';
     }
     else
     {
     	document.getElementById('table_'+arr[i]).style.display = 'none';
        document.getElementById('img_'+arr[i]).src = path+'/images/arrow.gif';
     }
  }
}