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<script language="JavaScript">
<!--
//ͼƬ°´±ÈÀýËõ·Å
var flag=false;
function DrawImage(ImgD,iwidth,iheight){
    //²ÎÊý(ͼƬ,ÔÊÐíµÄ¿í¶È,ÔÊÐíµÄ¸ß¶È)
    var image=new Image();
    image.src=ImgD.src;
    if(image.width>0 && image.height>0){
    flag=true;
    if(image.width/image.height>= iwidth/iheight){
        if(image.width>iwidth){  
        ImgD.width=iwidth;
        ImgD.height=(image.height*iwidth)/image.width;
        }else{
        ImgD.width=image.width;  
        ImgD.height=image.height;
        }
        ImgD.alt=image.width+"×"+image.height;
        }
    else{
        if(image.height>iheight){  
        ImgD.height=iheight;
        ImgD.width=(image.width*iheight)/image.height;        
        }else{
        ImgD.width=image.width;  
        ImgD.height=image.height;
        }
        ImgD.alt=image.width+"×"+image.height;
        }
    }

//-->
</script>
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function document.onkeydown(){
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