页面变灰 样式

 页面中加入

<style type="text/css">html {filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1); }</style> 

如果还有部分flash没有变灰,可以尝试以下操作(仅以SWFObject为例)
 var so = new SWFObject("sgph/amcolumn/amcolumn.swf", "amcolumn", "190", "70", "8", "#FFFFFF");
  so.addVariable("path", "sgph/amcolumn/");
  so.addVariable("settings_file", encodeURIComponent("sgph/examples/floating_chart/amcolumn_settings.xml"));
  so.addVariable("data_file", encodeURIComponent("sgph/examples/floating_chart/amcolumn_data.xml"));
  so.addVariable("preloader_color", "#999999");
  //变灰代码
   so.addParam("wmode", "opaque");
   so.addParam("allowfullscreen","true");
   so.addParam("allowscriptaccess","always");
  //变灰代码
  so.write("flashcontent")