function fixPNG(myImage)
{
	var arVersion = navigator.appVersion.split("MSIE");
	var version = parseFloat(arVersion[1]);
	if ((version >= 5.5) && (version < 7) && (document.body.filters))
	{
		 var imgID = (myImage.id) ? "id='" + myImage.id + "' " : "";
		 var imgClass = (myImage.className) ? "class='" + myImage.className + "' " : "";
		 var imgTitle = (myImage.title) ? "title='" + myImage.title   + "' " : "title='" + myImage.alt + "' ";
		 var imgStyle = "display:inline-block;" + myImage.style.cssText;
		 var strNewHTML = "<span " + imgID + imgClass + imgTitle
	   + " style=\"" + "width:" + myImage.width
	   + "px; height:" + myImage.height
	   + "px;" + imgStyle + ";"
	   + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
	   + "(src=\'" + myImage.src + "\', sizingMethod='scale');\"></span>";
		 myImage.outerHTML = strNewHTML;
	}
}

//图片等比例缩放
function DrawImage(ImgD,FitWidth,FitHeight){  
    var image=new Image();  
    image.src=ImgD.src;  
    if(image.width>0 && image.height>0){  
        if(image.width/image.height>= FitWidth/FitHeight){  
            if(image.width>FitWidth){  
                ImgD.width=FitWidth;  
                ImgD.height=(image.height*FitWidth)/image.width;  
            }  
            else{  
                ImgD.width=image.width;  
                ImgD.height=image.height;  
            }  
        }  
        else{  
            if(image.height>FitHeight){  
                ImgD.height=FitHeight;  
                ImgD.width=(image.width*FitHeight)/image.height;  
            }  
            else{  
                ImgD.width=image.width;  
                ImgD.height=image.height;  
            }  
        }  
    }  
}