JS圖片對象

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往事如烟

电梯直达

1^#

发表于 2009-11-30 00:46:09 | 只看该作者回帖奖励

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圖片onload后再執行事件
<script language="javascript">
var a=new Image();
a.onload=function()
{
bbb.innerHTML="";
imgshow.src=a.src;
$("#body2").height($("#aaa").height()+300);
};
a.src="<%=vall("img2")%>";
</script>

圖片按大小縮小
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;
}
}
}
}

<img src="<%=rsac("img")%>" width="90" height="50" border="0" onload="javascript:DrawImage(this,90,50);" />

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