function imgFix() {
  //定义要限制的图片宽高,这个宽高要同style里面定义的相同，小于限定高宽的图片不操作
  var widthRestriction = 660;
  var allElements = document.getElementsByTagName('*')
  for (var i = 0; i < allElements.length; i++)
  {
    if (allElements[i].className.indexOf('entry') >= 0)
        {
      var imgElements = allElements[i].getElementsByTagName('img');
      for (var j=0; j < imgElements.length; j++)
          {

		
		/*
		if ( imgElements[j].width > widthRestriction || imgElements[j].height > heightRestriction )
                {
          if ( imgElements[j].width > imgElements[j].height)
                  {
            imgElements[j].height = imgElements[j].height*(widthRestriction/imgElements[j].width);
            imgElements[j].width = widthRestriction;
         } else
                  {
            imgElements[j].width = imgElements[j].width*(heightRestriction/imgElements[j].height);
            imgElements[j].height = heightRestriction;
          }
        }
		*/
        if ( imgElements[j].width > widthRestriction ){
            imgElements[j].height = imgElements[j].height*(widthRestriction/imgElements[j].width);
            imgElements[j].width = widthRestriction;
		}





      } /*for j*/
    }
  }/*for i*/
}
window.onload = imgFix;