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 = "image/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')";
  }
}

var browser_name = navigator.appName;
var browser_version = parseFloat(navigator.appVersion);
opera=false;
if (browser_name=="Opera") opera=true;

function showauto()
{
	var node = document.getElementById("act");
	if (node.style.visibility == "hidden") node.style.visibility = "visible";
	else node.style.visibility = "hidden";
}